1-دیدگاههای عمومی سوپر آلیاژها ‏

Transcription

In the Name of God
New and Advanced Materials
International Congress
(NAMIC 2012)
May 30-31, 2012
Majlesi Branch, Islamic Azad University
Isfahan-Iran
ABSTRACTS
Editor: Professor S.K. Sadrnezhaad
Welcome Message
Thank God to provide the opportunity for me to be the host of you
scientists, professors, artisans, students, and researchers. Today the
potentials of Azad University Complex have reached a state to be able
to act as the host for large scale scientific international conferences.
And the Islamic Azad University of Majlesi is not an exception in this
regard. Therefore, in recent years, by improving and strengthening its
scientific and research dimensions in technical engineering fields, it
has been able to be introduced as one of the scientific poles of the
Islamic Republic of Iran.
The present conference which is the first international one held is a
place to introduce the latest findings of foreign and national
researches on material engineering and metallurgy in the field of new
materials (nano, bio, magnetic, …). Undoubtedly the outcomes of this
conference can dramatically improve the national and international
level of knowledge in its area. Hopefully at the end of this two- day
conference, we shall witness the positive impacts of this scientific
event.
In the end, I would like to appreciate the supporters of the conference
and all my colleagues’ inexhaustible efforts in Majlesi Azad University
each of which had an important role to hold this scientific gathering.
Mohammadhasan Gheisarian
Chancellor, Majlesi Branch, Islamic Azad University, Iran
Foreword
The objective of NAMIC 2012 is to provide a platform for academicians,
researchers and technical experts to exchange views, findings, ideas and
experiences for assessment of the state of the art and the future needs of the modern
society to the substances classifiable as nano, bio, smart, foamy, porous, functional,
composite, amorphous, precious, magnetic, thin layer, super-conducting and semiconducting materials. These substances are to help the human race by serving in
many different applications like nanosensors, NEMs, MEMs, nanocatalysts,
nanoelectronic materials, expert systems, intelligent structures, energy
conservation, environmental protection, fuel cell, solar cell, optoelectronic devices
and bioengineering systems. The focus of the congress is on correlation of
reactivity, durability, functionality, stability, strength and feasibility to molecular
structure and morphology.
From around 250 full-text manuscripts received, after careful refereeing, 130
papers were selected for oral and poster presentation. We are grateful to all the
authors and leading researchers for their active participation and valued
contributions. Sincere thanks to the workshop instructors for sharing their
knowledge and experience with their attendees. We would like to acknowledge the
efforts of all organizers, sponsors, assistants, reviewers, faculty members, students
and NAMIC personnel for their fine efforts and perseverance.
We appreciate all reputable guests and prominent scholars who accepted our
invitation and travelled a long distance to participate in this occasion. We feel
privileged of having many outstanding delegates from Iran and abroad. We wish to
thank the president of Majlesi branch of the Azad University for his continued
support and the scientific board, the organizing committee and the managerial team
of the congress for their superb assistance and dedication that made this congress a
success.
Professor S.K. Sadrnezhaad
Conference Chairman
Distinguished National Professor
1st New and Advanced Materials International Congress
NAMIC2012 -May30-31
Organizing Committee
Mohammadhasan Gheisarian
Dr. Mohsen Keyvanfard
Mohsen Heydari
Prof. S.K. Sadrnezhaad
M. Khodaei
Chancellor, Majlesi Branch, Islamic Azad University, Iran
Vice-President in Research of Majlesi Branch
Islamic Azad University, Iran
Vice-President in Administration of Majlesi Branch
Congress Scientific Chair
Sharif University of Technology , Iran
Conference Executive Chair, Majlesi Branch
Executive Committee
M. Khodaei
Conference Executive Chair
Dr. Kamran Amini
Member of Conference ExecutiveCommittee
Seyed Rasoul Fallahian
Abbas Saadat
Dr. M.S. Bozorgtabar
Mahmood Mahmoodi
M. Golozar
Saeid Sanayei
Hamid Nazemi
Seyed Mohsen Mousavi
Masoud Yousefian
Abbas Shabanian
MasoudHakimian
Masoud Golnari
Amirmasoud Mousavi
Masoud Rafatnia
NAMIC2012 -May30-31
Support Team
Hamid Reza Vahdat Poor
Manager of Arian Pars Engineering Co.
Reza Talebian
Ameneh Sharifi
Support Committee
Support Committee
Mona Mohammadi Rad
Support Committee
Zohreh Abdelahi
Support Committee
Zahra Aarabi
Support Committee
Mohammad Fahimi Najm
Reviewers’ Comments Assistance
Mojib Saei
Reviewers Software Assistance
Scientific Advisory Board
Sharif University of Technology, Iran
Professor Ahmad Saatchi
Isfahan University of Technology , Iran
Professor Mohammad Hossein Fathi
Dr. Mohammad Hossein Enayati
Dr. Seyed Farshid Kashani Bozorg
University of Tehran, Iran
Professor Ali Haerian Ardakani
FUM, Iran
Professor John Jonas
McGill, Canada
Dr. Adams Stefan
NUS, Singapore
Professor Witold Daniel Dobrowolski
Dr. Ouyang Jianyong
Institute of Physics, Polish Academy of Sciences,
Poland
NUS, Singapore
Professor Pu Chen
Waterloo Institute for nanotechnology, Canada
Professor Mark Hoffman
UNSW, Australia
Professor Yoshihiro ITO
RIKEN research center, Japan
Professor Sergey V. Gaponenko
Institute of Physics of the National Academy of Sciences
of Belarus
NAMIC2012 -May30-31
Reviewers Committee
Dr. Ali Ashrafi
ShahidChamran University of Ahvaz, Iran
Prof. Fakhroddin Ashrafizadeh
Isfahan University of Technology, Iran
Dr. Hosein Monajatizadeh
Najafabad Branch, Islamic Azad University, Iran
Dr. Hosein Paydar
Majlesi Branch, Islamic Azad University, Iran
Dr. Kamran Amini
Abbas Saadat
Dr. MaryamossadatBozorgtabar
Dr. Safarkhanian
Dr. Mohammad Reza PouyaMehr
Dr. Morteza Zand Rahimi
ShahidBahonar University of Kerman, Iran
Dr. Hamid Reza Ebrahimi
Professor Mohammad Hossein Fathi
Dr. Mohammad Hossein Enayati
Dr. F. Karimzadeh
Dr. Rafiei Nia
Isfahan University, Iran
Professor Ali Haerian Ardakani
FUM, Iran
Professor Witold Daniel Dobrowolski
Institute of Physics, Polish Academy of Sciences,
Poland
Dr. Ouyang Jianyong
NUS, Singapore
Professor Pu Chen
Waterloo Institute for nanotechnology, Canada
Professor Mark Hoffman
UNSW, Australia
Professor Yoshihiro ITO
RIKEN research center, Japan
Professor Sergey V. Gaponenko
Institute of Physics of the National Academy of
Sciences of Belarus
Dr. Jamak Nourmohammadi
Materials and Energy Research Center, Iran
NAMIC2012 -May30-31
Professor Ali Karimi Taheri
Dr. Ruholah Tavakoli
Professor S.H.R. Maddah Hoseini
Dr. Mohamad Reza Vaezi
Dr. Mansureh Ganjali
Professor Parvin Abachi
Professor Reza Bagheri
Dr. Mohamad Reza Mohamadi
Dr. Jianyong Ouyang
NUS, Singapore
Fardin Nematzadeh
Yaser Bahari
st
1 New and Advanced Materials International Congress
NAMIC 2012 - May 30-31
10330986
10330986
New materials
36
Optimization of Composite Rocket Launcher Using GA
E mam H ossein U niversity
A.R .N .O skouie
M .R .M ohammadi
A.H .R .M azyak
M .R .S .Barzegar
10531586
10531586
Nano materials
37
Study of Ultrasonic Technology to Create Nano-Structured Materials
Islamic Azad U niversity, N ajafabad Branch
A. R . Abbasi
A. E mamikhah
10732187
10732187
Bio materials
38
Biodegradable Magnesium–Fluorapatite Metal Matrix Nanocomposite with Improved
Corrosion Resistance for Biomedical Applications
Isfahan U niversity of Technology
M . R azavi
M .H . Fathi
M . M eratian
11233687
11233687
Nano materials
39
Synthesis of Al O -SiC-MgO Nanocomposites via Hot-pressing for Improving
Mechanical Properties
Iran U niversity of S cience and Technology
Jalil P ourasad
40
H amid R eza Baharvandi
N aser E hsani
Alireza R ahimnezhad Y azdi
H osein Abdizadeh
12637887
12637887
Bio materials
Effect of Anodizing Parameters on Surface Properties of Anodized Ti- Al- V Alloy for
Biological Applications
M alek- Ashtar U niversity
Z. Jamebozorg
41
K. Zangene -madar
M . M irjani
S h. Seyydin
14443288
14443288
Nano materials
Production of Nano-Structured Composites from Multilayered Al Pure(
) and AlMg(
) Al alloys By ARB Process and Evaluation Microstructure and Mechanical
Properties
Isfahan U niverity of Technology
S . Akhavan
A. Tahvilian
A. S aghayannejad
M . Toroghinejad
11
st
NAMIC 2012 - May 30-31
166498823
166498823
New materials
42
Effect of Mechanical Activation and Additive on Aullite Formation
M aterials and E nergy R esearch C enter
Arezoo S eifollahzadeh
Touraj E badzadeh
M asoud Alizadeh
189567828
189567828
Bio materials
43
nhancing Glass Inomer Cement Properties by HA-YSZ Nanocomposite : a Mixure
Design Experiment
D epartment of material engine., S cience and R esearch Branch, Azad university, Tehran, Iran
S . S alehi
G h. R ajabzadeh
44
A. N emati
M . S olati H ashtjin
195585828
195585828
Bio materials
Investigation of Non-isothermal Kinetics of Fluorapatite Synthesis via Solid State
Reaction
Islamic Azad U niversity, N ajafabad branch
S .R ahpeyma
45
R . Ebrahimi-Kahrizsangi
205615828
205615828
Nano materials
Synthesis and Characteristics of Copper Nanoparticles Using Laser Ablation
M aterials and E nergy R esearch C entre
M onireh G anjali
46
206618828
206618828
Nano materials
Synthesis of Au
-Cu
Bimetal Nanoalloy by Dual Prosedure
M aterials and Energy R esearch C entre
M ansoureh G anjali
47
M onireh G anjali
209627829
209627829
Nano materials
nthesis and Characterization of Nanostructure Intermetallic Compounds in Ni
Al System Using Mechanical Alloying
-Ti
-
H esam R ezvani S ichani
48
M ehdi S alehi
H osein E dris
M ansoor Toorani Farani
210630829
210630829
Nano materials
Synthesis of Ni Ti nanostructure intermetallic compound in Ni
mechanical alloying
M ansoor Toorani Farani
M ehdi S alehi
H osein E dris
12
H esam R ezvani S ichani
-Ti
system by
st
NAMIC 2012 - May 30-31
219657829
219657829
New materials
49
Effect of Fe O addition on crystallization of SiO -Na O-CaO system glasses
P . S hahsavari
B. E ftekhari Y ekta
V .K. M arghussian
N . S olati
221663829
221663829
Bio materials
50
Surface modification of Polyurethane as a Novel Skin Dress
Amirkabir U niversity of Technology
S . A. Ayati N ajafabadi
H . Keshvari
Y . G anji
222666829
222666829
Nano materials
51
High temperature oxidation behavior of graphite coated by dual layer of nano-SiC/SiC
Iran U niversity of S cience & Technology
H . Jafari
N . E hsani
52
S .A. Khalifeh-S oltani
M . Jalaly
246738829
246738829
New materials
Metal matrix composites aluminium
and fiber carbon
U niversity of Imam khomeini International, Q azvin
Farzaneh vali ghazvini
53
Arman sedghi
264792830
264792830
Functional materials
Optimisation of Fibre Orientations in Composite Material by Applying Simulating
Annealing and Genetic Algorithm Methods
Bournemouth U niversity, Bournemouth, U K
R asoul Khandan
54
S iamak N oroozi
P hilip S ewell
M ehran Koohgilani
H amid R eza H ooshyarmanesh
27381994
27381994
Effect of Electrical Parameters on Plasma Electrolytic Oxidation Coatings of
Alloy
Al
U niversity of W estern O ntario, C anada
V . D ehnavi
55
B. Luan
X .Y . Liu
S . R ohani
D . W . Shoesmith
27983799
27983799
Nano materials
Nano-crystalline Nickel Coatings Electrodeposited on Plain Carbon Steel in Watts-Type
Bath With and Without Additives
Fereshteh M allakpour
M aryam G olozar
Zahra D adkhah
13
M ohammad Ali G olozar
Keyvan R aeissi
st
NAMIC 2012 - May 30-31
283849916
283849916
New materials
56
Study on MR Nanocomposites to Develop a Miniature Gripper
Tarbiat M odares U niversity
Aref N aimzad
Y ousef H ojjat
M ojtaba G hodsi
294882918
294882918
Nano materials
57
Highly Selective Oxidation of Alcohols Using Nano-Sized NiO/TiO -ZrO
Heterogeneous Catalyst
as a Novel
Islamic Azad U niversity, S hahreza Branch, S hahreza, Isfahan, Iran
A.R . M assah
58
M . Azadi
Z. S hams ghahfarokhi
300900919
300900919
New materials
Properties of lightweight geopolymer with waste ashes and palm oil clinker aggregates
Islamic Azad university. Saveh branch
M ohammad Khanzadeh
59
G holamreza Khalaj
Ali N azari
Shadi R iahi
3099271012
3099271012
Nano materials
Investigation the effect of Nanohydroxyapatite on Tensile Properties of PHB/nHA
Composite Scaffold Used for Bone Tissue Engineering
IAU , majlesi branch
A. S aadat
A. behnamghader
60
Semi conductors
S . karbasi
3109301012
3109301012
Synthesis and Characterization of Nano ZnO Fibers by Electrospining Method
Islamic Azad U niversity Behbahan Branch
M .Kavosh
61
H . M oallemian
H . molaei
A. Ighan
A. M omtazan
M .E . D ehdashti
3189541018
3189541018
Nano materials
ANTIBACTERIAL PROPERTIES OF AU-AG ALLOY NANOPARTICLES
Iran M aterials and E nergy R esearch C enter
N . S . Tabrizi
62
M . Tazikeh
N . S hahgholi
3199571018
3199571018
Nano materials
Synthesizing of nano-structure MgNi Y alloy by mechanical milling and heat treatment
U niversity of Tehran
L. C hitsaz Khoyi
S h. R aygan
14
st
NAMIC 2012 - May 30-31
3209601018
3209601018
63
Effect of manufacturing process parameters on the microstructure and mechanical
properties of FGHMs
Islamic Azad U niversity - Islamshahr Branch
N ima Khademian
H abib Inanloo
R eza G holamipour
Ali Kaflou
3239691019
3239691019
Nano materials
64
Physical and Chemical properties of Solid Solutions Based on CuInSe -FeSe
Azarbajan
3269781020
3269781020
Magnetic materials
65
Using Electric and Magnetic Fields in Electrospinning Method for Synthesis of Fe O
Nanoparticles Doped on ZnO Nano Fibers
Islamic Azad U niversity, Behbahan Branch
M . Kavosh
H . M oallemian
A. Ighan
M . D ehdashti
3299871020
3299871020
Nano materials
66
Synthesis and Characterization of Titanium Oxide Nanoparticles (TiO ) with Rutile
Crystal Structure
Islamic Azad U niversity, Behbahan Branch
M . Kavosh
H . M oallemian
A. Ighan
M . D ehdashti
3309901020
3309901020
Nano materials
67
Synthesis and Characterization of Cluster Nano-Flowers Zinc Oxide and Study Optical
Properties
islamic azad university behbahan branch
M . Kavosh
H . M oallemian
A. M omtazan
A. Ighan
33510051026
33510051026
Bio materials
68
M . D ehdashti
Materials Nanointerfaces for Regenerative Medicine and Tissue Engineeering
R IKE N Advanced S cience Institute
Y oshihiro Ito
69
33710111027
33710111027
Bio materials
Two-Step Sintering of Dense Nanostuctured Hydroxyapatite/Titania composite
Ali Farzin
M ehdi Ahmadian
M .H . Fathi
15
st
NAMIC 2012 - May 30-31
3391017111
3391017111
Nano materials
70
Carboxylated Styrene Butadiene Rubber – MWCNT
Stress Relaxation Behavior of
Nanocomposite
Iran P olymer and P etrochemical Institute
F.Abbasi sourki
G h.Bakhshande
M .Alimardani
3401020112
3401020112
Nano materials
71
An Efficient Study on Crystallization Behavior of Poly (ethylene terephthalate)/TiO
Nanocomposites
U niversity of Tehran
M . Farhoodi
S . M . M ousavi
R . S otudeh-G harebagh
Z. E mam-D jomeh
Abdolrasul O romiehie
35410621117
35410621117
New materials
72
Formation Mechanism of TiCr Intemetallic by Calciothermic co-reduction Method
Iran U niversity of S cience and Technology (IU S T)
O . Bayat
A. R . Khavandi
73
R . G hasemzadeh
36610981120
36610981120
Nano materials
Effect of anodizing electrolyte temperature on Al-epoxy bonding strength
Islamic Azad university, S outh Tehran Branch
S . M ohagheghi
74
A. H atefi
A. Kianvash
37111131123
37111131123
Nano materials
Catalytic Activity of Machanochemically Prepared Strontium-Doped Nanostructural
Lanthanum Manganite
M aterials and Energy R esearch C enter
H .Tamaddon
75
A.M aghsoudipour
37511251124
37511251124
Bio materials
Construction and Stability of Glucose Biosensor Based on Carbon Past Electrode
Modified with Colloidal Gold Nanoparticles
Islamic Azad U niversity.S hahrood Branch
N ahid H ossein Fakhrabadi
Ali Asghar R ohani
Afshin Farahbakhsh
16
S aeed S ohrabi
st
NAMIC 2012 - May 30-31
37711311125
37711311125
Semi conductors
76
Investigation of ring opening polymerization of octamethylcyclotetrasiloxane by Nanionic nanostructured polyaniline
U niversity of Tabriz
Leyla S hadi
H oma G eibi
Kazem D indar S afa
Ali Akbar E ntezami
38311491127
38311491127
Nano materials
77
Fabrication of highly ordered gold nanorods film by thermal evaporation of gold into a
porous anodic alumina
Islamic Azad U niversity, S hiraz Branch
Zahra S oltani
M ohammad N oormohammadi
Fahimeh Behzadi
38411521127
38411521127
New materials
78
Produce A
Aluminum alloy foam by using silicone rubber granules
R .P ourgholam
79
S .M .H .M irbagheri
S .H .M irdamadi
38611581128
38611581128
Nano materials
Evolution of microstructure texture for multilayered Al (
accumulative roll bonding process
)/Al (
) composites by
Isfahan U niverity of Technology
S . Akhavan
80
A. Tahvilian
A. S aghayannejad
M . Toroghinejad
38811641128
38811641128
New materials
Meso Finite Element Modeling of Triaxial Braided Composites
Arezu E mami-Khalkhali
81
H ossein H osseini-Toudeshky
39211761129
39211761129
Bio materials
Bio-corrosion and Biocompatibility evalution of Ni-free Zr-based bulk metallic glasses
Amin M onfared
82
S hahab Faghihi
M ana N ovin
39411821129
39411821129
Nano materials
Synthesis of
polymerization
thermosensitive
PVA-g-NIPAAm
M arziyeh Fathi
Ali R eza Farajollahi
Ali Akbar E ntezami
17
nanohydrogels
by
radiation
st
NAMIC 2012 - May 30-31
39511851129
39511851129
Bio materials
83
Novel Amphiphilic block copolymer of Poly (citric acid)-b-Poly (L-lactide)-b-Poly (citric
acid) with ABA architecture: Synthesis, Characterization and Micellization
H oma G heybi
84
Ali Akbar E ntezami
39611881130
39611881130
Nano materials
The effect of La Sr CoO nanoparticles on nano electro mechanical systems by
XRD, X-powder and SEM techniques
Islamic Azad U niversity Fars S cience and R esearch branch
N eda G horbanzadeh
85
Ali Bahari
N ajmeh Araghi
39711911130
39711911130
Nano materials
Synthesis and Characterization of zinc powder using reduction method by natural gas
S ahand U niversity of Technology
S .R ahimi.M
86
J.M oghaddam
39811941130
39811941130
Nano materials
Growth and investigation of nanostructural properties of perovskite nano tubes by
XRD, X-powder and SEM techniques
Islamic Azad U niversity Fars S cience and R esearch branch
S alileh Asadollahzadeh
87
Ali Bahari
N ajmeh Araghi
39911971130
39911971130
New materials
Microstructure Refining of a Cast TiAl alloy via Homogenizing and Post Heat-Treatment
Processes
S iavash Zamani
88
H ekmat R azavizadeh
M ohammad Jahazi
40012001130
40012001130
New materials
The Effects of Chromium Addition on the Mechanical Properties of a Binary TiAl Alloy at
Elevated Temperatures
S iavash Zamani
M ohammad Jahazi
18
st
NAMIC 2012 - May 30-31
89
40112031130
40112031130
New materials
he Effects of V and Cr Addition on the Deformation Mechanisms and Mechanical
Behavior of a Binary TiAl Alloy
S iavash Zamani
90
M ohammad Jahazi
40212061130
40212061130
Nano materials
Synergistic Effect of ZnO and Functionalized Carbon Nanotube on the Improvement of
Filler Dispersion
Iran polymer and petrochemical institute
F.Abbasi sourki
91
M .Alimardani
G .R .Bakhshandeh
40412121130
40412121130
Nano materials
Surface analysis of polyvinyl chloride/kaolin nanocomposites
Islamic Azad U niversity, S hahre R ey Branch
M azeyar P arvinzadeh G ashti
92
H engameh Allahyary
P ouya N asraei G homi
40512151130
40512151130
Nano materials
Superabsorbent nanohydrogels of poly (N-isopropyl acrylamide –co-itaconic acid)
grafted on starch: Synthesis and swelling studies
Karim P ourjamal
93
M arziyeh Fathi
R oghieh Alizadeh
Ali Akbar E ntezami
4141242121
4141242121
Nano materials
Synthesis and surface modification of core/shell quantum dots with PEG for biological
detection and imaging
S harif U niversity of Technology
H adi O stadi
94
M ohamad. Alizadeh
S oheila yaghmaei
M anochehr H akim
M aziar H akim
H ossein Kharg
4151245121
4151245121
Nano materials
Investigation on the wear behavior of Cu/TiO Nano-composites Produced by Powder
Metallurgy and internal oxidation
S harif U niversity of Technology
A.H .M oghannian
A.Abazarpoor
M .R .G harabeick
19
A.Bahrami
S .K.S adrnezhad
st
NAMIC 2012 - May 30-31
4181254121
4181254121
Nano materials
95
Preparation and characterization of high energetic Al/Ni core-shell nanostructures
Ferdowsi U niversity of M ashhad
H . Beigi N asrabadi
M . zarei
B. S hahabi Kargar
S .A. S ajjadi
4221266121
4221266121
New materials
96
Effects Initial Press Pressure on of MoSi Method
vol% WSi Composite Synthesized to SHS
M aterial and E nergy R esearch C enter(M E R C )
R . sayad
S .A. Tayebifard
97
K. Ahmadi
4271281121
4271281121
Bio materials
Nanowire based cell for Harvesting Energy From in-vivo environment
Islamic Azad U niversity, Bushehr Branch
Abdolhossein Sa'aedi
98
H ossein R ouzegar
Alireza M alahzadeh
4311293121
4311293121
Nano materials
Structural and Magnetic Properties of Nanocrystalline SrFe
Precipitation Method
O
Hexaferrite by Co-
M aterials and E nergy R esearch C enter
Arvin E skandari
99
M ansoureh G anjali
M asoud Aminzare
4351305121
4351305121
New materials
Evaluation of mechanical properties of Al/NiP composites fabricated by accumulative
roll bonding (ARB) process
Shiraz U niversity
H ossein Baharipour
100
H abib D anesh M anesh
G holamreza S hahri
4401320122
4401320122
Bio materials
Influence of concentration of antibiotic (Cephalexin) on the rheological behavior of
calcium phosphate nano-composite cement pastes
M aterials and energy research center
R .S hiri
S .H esaraki
101
E .G hasemi
4421326122
4421326122
Semi conductors
Piezoelectric Nanowire toward Harvesting Energy From in-vivo environment
Islamic Azad U niversity, Bushehr branch
Abdolhossein Sa'aedi
M ohammad O rvatinia
H ossein R ouzegar
20
st
NAMIC 2012 - May 30-31
102
4471341122
4471341122
Semi conductors
Sol-gel Synthesis and Characterization of Barium Strontium Titanate Thin Films
M aterials and E nergy R edearch C enter (M E R C ), Karaj, Iran
A. N ajari
M .A. Bahrevar
103
A.R . Aghaei
4511353123
4511353123
New materials
A study on aluminum matrix composite reinforced with a two-dimensional network of
interconnected steel wires fabricated by lost foam casting
Iran U niversity of S cience and Technology (IU S T)
H .R . P akzaman
104
A.R . Khavandi
M . D ivandari
4531359123
4531359123
Nano materials
An Investigation through Reflection Coefficient of a Nano-Metallic Grains and Glass
Oxide Compound
Shiraz Payam-e N oor U niversity
H . Shahmirzaee
105
A. G harati
A.Kamaldar
4681404126
4681404126
Nano materials
Fabrication of hight conductive circuits via inkjet printting
G uilan U niversity
F.H aghdoost
F.M ohtaram
106
Nano materials
V .motaghitalab
A.K.H aghi
S .M .Bidoki
K.M ahfoozi
4691407126
4691407126
A novel approach for synthesis of silver nanoparticles
U niversity of G uilan
F.M ohtaram
107
F.H aghdoost
V .motaghitalab
A.K.H aghi
4811443127
4811443127
Nano materials
Mechanical properties and gelation behavior of gel-cast ZrO bodies
S eyed M ohammad M ahdi R ouholamini
108
M orteza Zandrahimi
52515751210
52515751210
Nano materials
Effect of Medium and solvent Changing on Polystyrene Seed Nano-Particles Synthezied
via Dispersion Polymerization
Ali Bavi
Babak N asr
Faramarz Afshar Taromi
H ormoz E slami
21
st
NAMIC 2012 - May 30-31
109
55816741212
55816741212
Magnetic materials
The Investigation of Effect of Barrium Hexa Ferrite Nano Particles on the magneic
Properties And Bonding Srength of Nd-Fe-B Hybrid Magnets
S hahid Bahonar Kerman
P edram P arsa
110
M ohammad R eza IzadP anah
56216861212
56216861212
Nano materials
Effect of important factors on synthesis of prussian blue nanoparticle
islamic azad university,science & research branch
S eyed E hsan H oseininasab
111
Amir H eidarinasab
N ahid Amiri
56416921224
56416921224
Nano materials
Phase evolution of hydroxyapatite nanocomposites during sintering
D epartment of C eramic, M aterials & Energy R research C enter (M ER C ), Karaj, P .O . Box 31787-316, Iran
M ohsen Ebrahimi
112
Touradj Ebadzadeh
Esmail Salahi
56616981225
56616981225
Nano materials
Heat operation for synthesis of calcinated hydroxyapatite and loading silver
nanoparticles on it
D epartment of C hemistry, M ajlesi Branch, Islamic Azad U niversity, Isfahan, Iran
H .R .E brahimi
113
M .Khodaie
M .M odrek
N .M ahru
5671701224
5671701224
Nano materials
Evaluation of Bioactivity of PHB/nHA Composite Scaffold for Bone Tissue Engineering
Islamic Azad U niversity, M ajlesi Branch
Abbas Saadat
114
AliAsghar Behnamghader
Saeed Karbasi
5681704224
5681704224
Nano materials
Some Aspects of New Advanced High-Mn TWIP steels
U niversity of Isfahan
G . D ini
H . shekari
115
5691707224
5691707224
Bio materials
DESIGN AND SYNTHESES OF PHOTO-REACTIVE BIOPOLYMERS
R IKE N Advanced S cience Institute
Y oshihiro Ito
22
st
NAMIC 2012 - May 30-31
116
5701710224
5701710224
New materials
A Comparison between UV Protection Factor of Fabrics composed of Aluminum and
Copper
S . M . E slami Tabaei
117
M . G hane
5711713224
5711713224
Nano materials
Electroplating of Sol-Enhanced Black Ni Composite Coatings
U niversity of Auckland
M arzieh S harifi
118
W ei G ao
5771731224
5771731224
New materials
The role of silicon carbide particles in stabilizing aluminum foam in batch type gas
injection foaming process
Iranian Academic C enter for Education, C ulture and R esearch (AC E C R ), M ashhad
M . M alekjafarian
119
M . S . Abravi
M . G olestanipour
A. R . Sadeghi
S .K. Sadrnezhaad
5781734224
5781734224
Bio materials
The effect of adding bioactive glass on the fluoride release of resin-modified glassionomer cement in simulated body fluid
M aterials and E nergy R esearch C enter,Karaj
Jhamak N ourmohammadi
120
S hokufeh Teimory
S .K. S adrnezhaad
5791737224
5791737224
New materials
Self-Propagating High-Temperature Synthesis of Porous Molybdenum Disilicide
Composites
Iranian Academic C enter for E ducation, C ulture and R esearch (AC E C R ), M ashhad
M . M alekjafarian
121
E . Zahabi
S .K. S adrnezhaad
5801740224
5801740224
New materials
PHYSICAL - CHEMICAL AND THERMODYNAMIC PROPERTIES OF ALUMINUM ALLOYSNEODYMIUM
M ajlesi Branch, Islamic Azad U niversity
M .B R azazi
R .N .Amini
B.B Ishov
A.B Badalov
23
st
NAMIC 2012 - May 30-31
5811743224
5811743224
Semi conductors
122
Semiconductor nanoscrystals as novel optical materials
B.I.S tepanov Institute of P hysics, M insk, Belarus
S .V . G aponenko
583174923
583174923
123
Metal foam sandwich composites: Contact damage, residual bending strength and
energy absorption
S chool of M aterials S cience and E ngineering, U niversity of N ew S outh W ales, S ydney, Australia
M aizlinda I. Idris
Tania V odenitcharova
M ark H offman
584175231
584175231
124
Modification of light-matter interaction in nanostructures: From basic physics towards
applications
Stepanov Institute of Physics, N ational Academy of Sciences of Belarus
83249729
83249729
Nano materials
125
Toughening of PA /HDPE/SEBS-g-MA/Clay nanocomposite
Islamic Azad U niversity, S outh of Tehran branch
M . Attari
A. Arefazar
G h. R . Bakhshandeh
85255730
85255730
New materials
126
Investigation on The Effect of Viscoelasticity on Natural Frequency in Cylindrical
Sandwich Using FEM
Imam H ossein U niversity
M .shariyat
S .M .M .Shakib
127
A.R .N .O skouie
A.H .R .M azyak
M .R .M ohammadi
9227685
9227685
Bio materials
Tribology Evaluation of Jatropha as an Environmental Friendly Lubricant
U niversity Technology M alaysia
I. G olshokouh
128
S . S yahrullail
F.N . Ani
9829485
9829485
Bio materials
Micromechanical study of green wood subjected to mode I fracture
Tarbiat M odarres U niversity
A. S edaghat
M . S oleymani
M . Talachian
24
‫‪st‬‬
‫‪1 New and Advanced Materials International Congress‬‬
‫‪NAMIC 2012 - May 30-31‬‬
‫‪131‬‬
‫‪Farsi3079211011‬‬
‫‪Farsi3079211011‬‬
‫‪Functional materials‬‬
‫)‪Mo(Si,Al‬‬
‫‪M aterials and E nergy R esearch C enter‬‬
‫حسیي فصیحی دستجردی‬
‫‪132‬‬
‫سیذ علی طیبی فرد‬
‫هسعَد علیسادُ‬
‫هحوذرضا حسي زادُ‬
‫‪Farsi35710711117‬‬
‫‪Farsi35710711117‬‬
‫‪Nano materials‬‬
‫‪LLDPE/nanoTiO‬‬
‫داًشگاُ شیراز‬
‫ًذا سرحذی‬
‫حویذُ بصیری‬
‫‪133‬‬
‫جَاد هرادللی‬
‫هحوذ ابراّین بحرالعلَم‬
‫هحوذ حسیي شیخی‬
‫‪Farsi36711011121‬‬
‫‪Farsi36711011121‬‬
‫‪New materials‬‬
‫داًشگاُ صٌعتی اهیركبیر‪ٍ ،‬احذ هاّشْر‬
‫اهیر بابايی‬
‫سیذ رضا غفارياى‬
‫‪134‬‬
‫سیاهك باسمی‬
‫‪Farsi4761428126‬‬
‫‪Farsi4761428126‬‬
‫‪WC-Co‬‬
‫آزاد اسالهی ٍاحذ اسالهشْر‬
‫ًیوا خادهیاى‬
‫حبیب ايٌاًلَ‬
‫‪135‬‬
‫رضا غالهی پَر‬
‫‪Farsi4781434126‬‬
‫‪Farsi4781434126‬‬
‫داًشگاُ فردٍسی هشْذ‬
‫حسیي حسیٌخاًی‬
‫جلیل ٍحذتی خاكی‬
‫سیذ هجتبی زبرجذ‬
‫‪26‬‬
‫‪st‬‬
‫‪NAMIC 2012 - May 30-31‬‬
‫‪136‬‬
‫‪Farsi4831449127‬‬
‫‪Farsi4831449127‬‬
‫‪Co‬‬
‫‪Fe‬‬
‫داًشگاُ علن ٍ صٌعت ايراى‬
‫علی هْرالحسیٌی‬
‫‪137‬‬
‫حویذ رضا صوین‬
‫حکوت رضَی زادُ‬
‫‪Farsi4871461127‬‬
‫‪Farsi4871461127‬‬
‫‪-‬‬
‫داًشگاُ صٌعتی اصفْاى‬
‫يلذا كريوی‬
‫احوذ هٌشی‬
‫‪138‬‬
‫‪Farsi4901470128‬‬
‫‪Farsi4901470128‬‬
‫‪Semi conductors‬‬
‫‪LaFeO‬‬
‫داًشگاُ آزاد اسالهی ٍاحذ علَم ٍ تحمیمات تْراى‬
‫زّرا درخشی‬
‫هرتضی تویسی فر‬
‫‪139‬‬
‫كاٍُ ارزاًی‬
‫سعیذ باغشاّی‬
‫‪Farsi4931479128‬‬
‫‪Farsi4931479128‬‬
‫داًشگاُ صٌعتی شريف‬
‫آرهیي ٍحیذ هحوذی‬
‫‪140‬‬
‫هحوذ حاللی‬
‫هحسي حاجی پَر‬
‫‪Farsi4941482129‬‬
‫‪Farsi4941482129‬‬
‫‪B C‬‬
‫‪ZrB -SiC‬‬
‫داًشگاُ صٌعتی هالك اشتر‬
‫علی رزهجَ‬
‫هْری هشْذی‬
‫هحبَبِ شاهبَلی‬
‫‪27‬‬
‫‪st‬‬
‫‪NAMIC 2012 - May 30-31‬‬
‫‪Farsi4951485129‬‬
‫‪Farsi4951485129‬‬
‫‪141‬‬
‫‪AZ‬‬
‫آزاد ٍاحذ علَم ٍ تحمیمات‬
‫رٍزبِ ًصیری‬
‫هحوذ اسذی‬
‫سیذ فرشیذ كاشاًی بسرگ‬
‫هصطفی هختاری‬
‫‪Farsi4961488129‬‬
‫‪Farsi4961488129‬‬
‫‪142‬‬
‫‪Mn+Fe O‬‬
‫پصٍّشگاُ هَاد ٍ اًرشی‬
‫حسیي اسواعیلی‬
‫سیذ علی طیبی فرد‬
‫‪Farsi4981494129‬‬
‫‪Farsi4981494129‬‬
‫‪143‬‬
‫داًشگاُ آزاد اسالهی ٍاحذ هشْذ‬
‫جعفر اسکٌذری جن‬
‫هْرداد جبارزادُ‬
‫هحوَد خسرٍی‬
‫‪Farsi4991497129‬‬
‫‪Farsi4991497129‬‬
‫‪144‬‬
‫‪MgAl O -Ti(C,N‬‬
‫آزاد علَم ٍ تحمیمات‬
‫رحین ًمی‮زادُ‬
‫الِْ خَش اهیذ‬
‫‪145‬‬
‫حویذرضا رضايی‬
‫‪Farsi5021506129‬‬
‫‪Farsi5021506129‬‬
‫پصٍّشگاُ هَاد ٍاًرشی‬
‫حویرا جوالی‬
‫هحوذ رضا ٍاعظی‬
‫علی خاًلرخاًی‬
‫‪28‬‬
‫‪st‬‬
‫‪NAMIC 2012 - May 30-31‬‬
‫‪Farsi5061518129‬‬
‫‪Farsi5061518129‬‬
‫‪146‬‬
‫داًشگاُ شْیذ باٌّر كرهاى‬
‫اهیر گلستاًی‬
‫هرتضی زًذ رحیوی‬
‫سیذ اسواعیل شکیب‬
‫‪Farsi50915271210‬‬
‫‪Farsi50915271210‬‬
‫‪147‬‬
‫داًشگاُ آزاد اسالهی علَم ٍتحمیمات تْراى‬
‫ابراّین لاسوی‬
‫تْویٌِ گیَُكی‬
‫علی ًعوتی‬
‫‪Farsi51215361210‬‬
‫‪Farsi51215361210‬‬
‫‪148‬‬
‫‬‫علَم ٍ تحمیمات تْراى‬
‫هرضیِ پذراى‬
‫كاٍُ اَرزاًی‬
‫رحین ًمی زادُ‬
‫هحوذ اسذی‬
‫‪Farsi51615481210‬‬
‫‪Farsi51615481210‬‬
‫‪149‬‬
‫‪ZnO‬‬
‫ازاد اسالهی اردبیل‬
‫هعصَهِ ًاصری‬
‫‪150‬‬
‫علی شاهل‬
‫ياشار عسيسياى كالًذرق‬
‫‪Farsi51915571210‬‬
‫‪Farsi51915571210‬‬
‫‪Al/B C‬‬
‫علیرضا هرادی فرادًبِ‬
‫هرتضی شوعاًیاى اصفْاًی‬
‫حسیي ادريس‬
‫‪29‬‬
‫‪st‬‬
‫‪NAMIC 2012 - May 30-31‬‬
‫‪Farsi52215661210‬‬
‫‪Farsi52215661210‬‬
‫‪151‬‬
‫‪-‬‬
‫داًشگاُ گیالى‬
‫جوال هظلَم‬
‫فرّاد اسوعیلی لذسی‬
‫هیٌا غالهی كفترٍدی‬
‫هحوذرضا جلیلیاى ًصرتی‬
‫‪Farsi52315691210‬‬
‫‪Farsi52315691210‬‬
‫‪Bio materials‬‬
‫‪152‬‬
‫سعیذ ًَری خراساًی‬
‫ًرگس هظاّری‬
‫‪Farsi52615781210‬‬
‫‪Farsi52615781210‬‬
‫‪153‬‬
‫‬‫داًشگاُ تحصیالت تکویلی صٌعتی كرهاى‬
‫سیذُ زّرا حسیٌی‬
‫هصطفی علیسادُ‬
‫‪Farsi52815841210‬‬
‫‪Farsi52815841210‬‬
‫‪154‬‬
‫‪TiO -Al-C‬‬
‫‪Al O -TiC‬‬
‫حسیي ادريس‬
‫اصغر ًیوجردی‬
‫‪155‬‬
‫رحوت اهلل عوادی‬
‫‪Farsi53616081210‬‬
‫‪Farsi53616081210‬‬
‫هرتضی زًذ رحیوی‬
‫‪156‬‬
‫ساراالسادات حسیٌی فارق‬
‫الِْ حسي زادُ پاريسی‬
‫‪Farsi54016201210‬‬
‫‪Farsi54016201210‬‬
‫پصٍّشگاُ پلیور ٍ پترٍشیوی ايراى‬
‫جعفر رضاًیا‬
‫حویذ رحیوی‬
‫‪30‬‬
‫‪st‬‬
‫‪NAMIC 2012 - May 30-31‬‬
‫‪157‬‬
‫‪Farsi54116231210‬‬
‫‪Farsi54116231210‬‬
‫داًشگاُ آزاد اسالهی ٍاحذ فسا‬
‫غالهرضا لذر‬
‫هسعَد جباری‬
‫‪158‬‬
‫هحوَد آل شوس‬
‫‪Farsi54316291211‬‬
‫‪Farsi54316291211‬‬
‫‪Bio materials‬‬
‫‬‫داًشگاُ صٌعتی اصفْاى‬
‫هحوذ حسیي فتحی‬
‫پارسا رضَاًیاى‬
‫‪159‬‬
‫‪Farsi54416321211‬‬
‫‪Farsi54416321211‬‬
‫‪-xSix‬‬
‫)‬
‫‪-Co‬‬
‫‪Fe‬‬
‫شْیذ باٌّر كرهاى‬
‫هرين يَسفی‬
‫شْريار شرفی‬
‫‪160‬‬
‫‪Farsi55016501211‬‬
‫‪Farsi55016501211‬‬
‫فاطوِ هحترم‬
‫فاطوِ حك دٍست‬
‫‪161‬‬
‫ٍحیذ هتمی طلب‬
‫اكبر خذاپرست حمی‬
‫‪Farsi55116531211‬‬
‫‪Farsi55116531211‬‬
‫‪Smart materials‬‬
‫فاطوِ حك دٍست‬
‫فاطوِ هحترم‬
‫ٍحیذ هتمی طلب‬
‫اكبر خذاپرست حمی‬
‫‪31‬‬
‫‪st‬‬
‫‪NAMIC 2012 - May 30-31‬‬
‫‪162‬‬
‫‪Farsi55216561211‬‬
‫‪Farsi55216561211‬‬
‫‬‫داًشگاُ تحصیالت تکویلی صٌعتی كرهاى‬
‫هیالد طالبیاى‬
‫هصطفی علیسادُ‬
‫‪163‬‬
‫‪Farsi55416621211‬‬
‫‪Farsi55416621211‬‬
‫پذرام پارسا‬
‫هحوذرضا ايسدپٌاُ‬
‫‪164‬‬
‫‪Farsi55616681212‬‬
‫‪Farsi55616681212‬‬
‫‪C-SiC‬‬
‫داًشگاُ آزاد اسالهی ٍاحذ هجلسی‬
‫سعیذ صافی‬
‫رحین يسداًی راد‬
‫‪165‬‬
‫اصغر كاظن زادُ‬
‫يَسف صفايی ًائیٌی‬
‫‪Farsi56016801212‬‬
‫‪Farsi56016801212‬‬
‫‪NaOH KOH‬‬
‫داًشگاُ صٌعتی اهیركبیر‬
‫آرهاى هرفع‬
‫ّرهس اسالهی‬
‫‪166‬‬
‫حبیب اهلل بیات‬
‫سلواى الیاسی‬
‫‪Farsi5751725224‬‬
‫‪Farsi5751725224‬‬
‫پريسا ٍحذت خَاُ‬
‫سیذ خطیباالسالم صذرًصاد‬
‫‪32‬‬
st
NAMIC 2012 - May 30-31
Farsi5821746227
Farsi5821746227
Nano materials
NiTi
167
‫سیذ علیرضا حسیٌی‬
33
‫سیذ خطیب االسالم صذرًصاد‬
‫شْريار اكبری ًیا‬
NAMIC 2012
English Papers
st
NAMIC 2012 - May 30-31
New materials
10330986
Optimization of Composite Rocket Launcher Using GA
A.R.N.Oskouie (1)M.R.Mohammadi (2)A.H.R.Mazyak (3)M.R.S.Barzegar (4)
mohammadrezaskruch.mohammadi@yahoo.com
Abstract :
Nowadays, as is well known, optimized composite materials are employed in many
constructions when high strength to weight ratio and increasing the section rigidity of the light
weight structures and ease of manufacturing are required. In this paper, new optimization
method of graphite-epoxy composite cylindrical shell, under thermo mechanical loading is
done by MATLAB SOFTWARE coding in GENETIC algorithm method to decrease weight of
structure in satisfactory limit. The completely mathematical method of composite layup is
reached by using of approximately approach analysis of long shells and plates. The failure
criterion of Composite materials is T-SaiHill. Final results of analysis for obtain the critical
points of rocket shooting, are done by ABAQUS SOFTWARE.
Keywords : Abaqus, Matlab, Genetic Algorithm, Composite, Launcher
- Emam Hossein , Faculty of Mech. Eng. ,Hakimiyeh , Tehran
- - - Emam Hossein University, Faculty of Aero Space .Eng. ,Hakimiyeh , Tehran
36
36
st
NAMIC 2012 - May 30-31
Nano materials
10531586
Study of Ultrasonic Technology to Create Nano-Structured
Materials
A. R. Abbasi (1)A. Emamikhah (2)
abasi@iaun.ac.ir
Abstract :
Recently some investigations have been performed in the field of ultrasonic technology
for improving the nano surface characteristic. Ultrasonic Cold Forging Technology (UCFT) is a
sever plastic deformation which accomplishes with nano structure of surface layers by HallPetch theory and ultrasonic technique that increases mechanical properties of the materials.
At this technology according to Hall-Petch theory both toughness and hardness will augment
simultaneously with sever plastic deformation, then will contribute to nanostructure of surface
layers and increase the metal strength. At this study, basic principle of UCFT and related
experiences on steel were taken into account in view of previous setup and research.
Consequences indicated the rising in tensile strength, hardness surface improvement and
reduction in surface roughness and friction coefficient. Aforesaid technology has low energy
consumption and without any limitation in part dimensions can be a replacement of heat
surface treatment.
Keywords : Ultrasonic, Nanostructure, Mechanical properties, UCFT
- - Graduated, Master of science, Islamic Azad University Najafabad Branch
37
37
st
NAMIC 2012 - May 30-31
Bio materials
10732187
Biodegradable Magnesium–Fluorapatite Metal Matrix
Nanocomposite with Improved Corrosion Resistance for
Biomedical Applications
M. Razavi (1)M.H. Fathi (2)M. Meratian (3)
m.razavi@ma.iut.ac.ir
Abstract :
The aim of this work was to prepare and characterize of biodegradable magnesium–
fluorapatite metal matrix nanocomposite. Novel AZ91–FA nanocomposite were produced by
AZ91 magnesium alloy powders and FA nanoparticles. Bio–corrosion behavior of the prepared
AZ91–FA nanocomposite, and also the AZ91 magnesium alloy as control sample, were
evaluated. The results showed that the presence of the AZ91–FA nanocomposite presented
increased corrosion resistance compared to the AZ91 magnesium alloy. The addition of
fluorapatite nano particles reinforcements to magnesium alloys accelerate the formation of an
apatite layer on the surface, which provides improved protection for the AZ91 matrix.
Keywords : Biomaterials, nano-composite, Biodegradable Magnesium alloys
- Ph.D. student, Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran.
- Professor, Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran.
- Associate Professor, Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran.
38
38
st
NAMIC 2012 - May 30-31
Nano materials
11233687
Synthesis of Al O -SiC-MgO Nanocomposites via Hotpressing for Improving Mechanical Properties
Jalil Pourasad (1)Hamid Reza Baharvandi (2)Naser Ehsani (3)Alireza Rahimnezhad Yazdi (4)
Hosein Abdizadeh (5)Hafez Ahmadi (6)
pourasad_jalil@yahoo.com
Abstract :
Alumina with having excellent mechanical properties has disadvantages such as low
fracture toughness and excessive grain growth during sintering. In this project,
vol. % SiC
nanoparticles were added to Al O powder containing MgO nanoparticles. Sintering of the
powder compacts was carried out in argon at
to
°C temperatures under
MPa.
The results indicated significant increases in mechanical properties such as density, flexural
strength, hardness to
GPa, and toughness fracture with increasing hotpressing
temperature. The SEM micrographs showed SiC nanoparticles inhibited the grain growth of
Al O . The fracture mode of Al O -nanoSiC nanocomposites were mainly intragranular
fracture.
Keywords : nanocomposites, alumina; silicon carbide, hot pressing, Mechanical Properties
- - - - Faculty of Materials Engineering, Malek ashtar University of Technology, Tehran, Iran
- Faculty of Materials Engineering, University of Tehran, Tehran, Iran
- Faculty of Materials Engineering, Sharif University of Technology, Tehran, Iran
39
39
st
NAMIC 2012 - May 30-31
Bio materials
12637887
Effect of Anodizing Parameters on Surface Properties of
Anodized Ti- Al- V Alloy for Biological Applications
Z. Jamebozorg (1)K. Zangene-madar (2)M. Mirjani (3)Sh. Seyydin (4)
kzangeneh@mut.ac.ir
Abstract :
Anodic oxide layers were produced on Ti–6Al–4V substrates using aqueous
electrolytes containing dissolved calcium and phosphorus. Anodizing treatment was carried
out at different times (45-135 min) and voltages (30-90 V). Different oxide layers were
produced by varying the voltage and time anodizing. Thickness, surface roughness, surface
morphology and chemical composition of oxide layer were investigated. To evaluate the
biocompatibility of the oxide layers, electrochemical polarization test in Ringer`s solution was
performed. Structure of the layers was studied by X-ray diffraction and scanning electron
microscopic. It is found that the thickness and surface morphology strongly is a function of
voltage and time anodizing. Increasing the voltage up to 60 volts, resulting to smaller pores up
to 2μm, and it decreases the roughness. In general, increase in voltage decrease the
roughness up to . μm. The best biocompatibility properties are obtained under
V and
min.
Keywords : Anodizing, Ti- Al- V alloy, Biocompatibility, Surface Treatment
- - - - Department of Material Engineering, Faculty of Materials & Manufacturing Processes, Malek- Ashtar University, Tehran, Iran
40
40
st
NAMIC 2012 - May 30-31
Nano materials
14443288
Production of Nano-Structured Composites from
Multilayered Al Pure(
) and Al-Mg(
) Al alloys By ARB
Process and Evaluation Microstructure and Mechanical
S. Akhavan (1)A. Tahvilian (2)A. Saghayannejad (3)M. Toroghinejad (4)
s_a_metallurg@ma.iut.ac.ir
Abstract :
Accumulative roll bonding (ARB) is a severe plastic deformation process for achieving
ultra-fine grains in metallic sheets without changing the sample dimensions. A high-purity
Al(
) alloy and a Al-Mg(
) alloy were ARB process up to
cycles at ambient
temperature to generate sheet composite material consisting of alternating layers of Al and AlMg. Sample properties were studied by employing hardness measurements, tensile test, SEM
and TEM characterizations. The deformation structure within these layers consisted of lamellar
bands aligned parallel to the rolling direction. With increasing the strain, mean spacing of
lamellar boundaries decreased. Finally, continuous recrystallization resulted in a
microstructure covered with small recrystallized grains with an average diameter below
nm at the end of four cycle. The tensile strength and hardness of the cycle ARB processed
composite sheet increased about
times of the initial
Al alloy values and about five
times of the initial
Al alloy values, respectively. Fracture surfaces observations showed
that failure mode in ARB processed composite is shear ductile rupture with elongated small
dimples.
Keywords : Accumulative roll-bonding, Severe plastic deformation, Aluminum
, Aluminum
,
- - M.Sc, Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran
- M.Sc, Islamic Azad University, Najafabad Branch, Isfahan, Iran
- Associate Prof., Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran
41
41
st
NAMIC 2012 - May 30-31
New materials
166498823
Effect of Mechanical Activation and Additive on Aullite
Formation
Arezoo Seifollahzadeh (1)Touraj Ebadzadeh (2)Masoud Alizadeh (3)
seifolahzadeh@yahoo.com
Abstract :
Mullite have been used as an structural and electronic ceramic due to its excellent
structural properties such as good mechanical strength, excellent thermal shock and creep
resistance, low thermal conductivity and high-temperature stability. The characteristic structure
of mullite allows its grain to grow anisotropically if the grain growth takes place without any
external constraint. The conventional techniques for synthesis of these elongated mullite
grains are vapor- solid synthesis and in situ processing technique. Because of disadvantages
of these techniques researchers tried to develop an alternative technique to produce mullite
whiskers by mechanical activation of mixed oxide precursors. Also, some oxide additives
decrease the temperature of mullite phase formation from starting materials. So in this paper it
is tried to explain the enhancement in mullite formation in mechanoactivated starting materials
doped with additives.
Keywords : Mechanical activation, Mullite, Anisotropic grain growth, Oxide additives
- - - Ceramic Division, Materials & Energy Research Centre, Emam Khomeini Blvd, Meshkin Dasht, Karaj, IRAN
42
42
st
NAMIC 2012 - May 30-31
Bio materials
189567828
nhancing Glass Inomer Cement Properties by HA-YSZ
Nanocomposite : a Mixure Design Experiment
S. Salehi (1)Gh. Rajabzadeh (2)A. Nemati (3)M. Solati Hashtjin (4)
sah.salehi@gmail.com
Abstract :
Beside of Glass Inomer Cements ,s (GIC) brilliant properties, the weak mechanical
properties of GIC is as big barrier for using it in the orthopedic surgery. The present research
aims to formulate hydroxyapatite/ yetrria stabilized zirconia (HA/YSZ) -GIC composite cements
with improved mechanical properties of the set cement than the pure GICs. The HA/YSZ was
synthesized via sol-gel method and characterized by X-ray diffraction (XRD), fourier transform
infrared spectroscopy (FT-IR) , X-ray photo-emission spectroscopy (XPS), the simultaneous
thermal analysis (STA) and
transmission electron microscopy (TEM) methods. The
synthesized nanocomposite was mixed with GIC in the fixed composition of
%W/W. The
mechanical effect of different weight percent of YSZ: HA on GIC was investigated by
measuring the compressive strength, diametral tensile strength, hardness.
Keywords : Glass inomer cement, HA/YSZ, mechanical properties
- Master student of material engineering, Department of material engineering, Science and Research Branch, Islamic Azad University,
Tehran, Iran
- Nanotechnology Department, Research Institute of Food Science and Technology, Mashhad, Iran
- Department of Material Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Nano-biomaterials Lab (NBML), Faculty of Biomedical Engineering, Amir Kabir University of Technology, Tehran, Iran
43
43
st
NAMIC 2012 - May 30-31
Bio materials
195585828
Investigation of Non-isothermal Kinetics of Fluorapatite
Synthesis via Solid State Reaction
S.Rahpeyma (1)R. Ebrahimi-Kahrizsangi (2)
srahpayma@gmail.com
Abstract :
In this research, the kinetics of Fluorapatite synthesis via mechanochemical route in
non-isothermal conditions was studied. The reaction kinetics was investigated by means of
simultaneous thermal analysis(STA) instrument. The experiments were carried out under nonisothermal condition in argon atmosphere with linear heating rates of ,
and ◦C/min. The
Coats-Redfern approximation was used to determine the mechanism of reaction and Kinetics
parameters. The results showed that the reactions are chemically controlled with mechanism
of E= 16 KJmol-1.
Keywords : Fluorapatite, Mechanochemical synthesis, Reaction mechanism, Kinetics
- M.Sc student, Department of Material Engineering, Islamic Azad University-Najafabad Branch, Isfahan, Iran
- Associate Professor, Department of Material Engineering, Islamic Azad University-Najafabad Branch, Isfahan, Iran
44
44
st
NAMIC 2012 - May 30-31
Nano materials
205615828
Synthesis and Characteristics of Copper Nanoparticles
Using Laser Ablation
Monireh Ganjali (1)
monireh.gan@merc.ac.ir
Abstract :
Nanosized Copper (Cu) particles were controllably synthesized during pulsed laser
ablation of Cu target in surfactant-free aqueous solution (pure acetone and deionized water).
Thereby, the particles formation rate depends on the used ambient and laser beam
parameters. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and transmission
electron microscopy (TEM) were conducted in order to determine the size, shape and
structure of the particles. XRD characterization confirms the formation of Cu nanoparticles
(NPs). The synthesized Cu NPs are self assembled with average size lying in the range
- nm with narrow size distribution and crystalline in nature.
Keywords : Nanosized Cu, Laser ablation
- Nanotechnology and Advanced Materials, Materials and Energy Research Center (MERC) ,Tehran, Iran
45
45
st
NAMIC 2012 - May 30-31
Nano materials
206618828
Synthesis of Au
-Cu Bimetal Nanoalloy by Dual
Prosedure
Mansoureh Ganjali (1)Monireh Ganjali (2)
ganjali.m@gmail.com
Abstract :
This present study was focused on the synthesis of alloyed Au-Cu nanoparticles under
simultaneous pulsed laser and mechanical stirring of mixed individual metallic colloids, here
referred to as dual procedure. As feed for dual procedure, Au and Cu monometallic
nanoparticles colloids were achieved based on a laser ablation technique. To perform this,
bulk targets were ablated with
nm wavelength Nd:YAG laser in a pure acetone (
%)
medium. Ultra violet-Visible optical absorption spectrometry, transmission electron
microscopy, X-ray diffraction and X-ray fluorescence were used to characterize the
nanoparticles. It was found experimental conditions such as stirring and laser parameters
strongly affect the synthesized particle properties such as size, shape, composition and
stability of the nanoparticles. Alloy nanoparticles containing
% Au – 61 % Cu were
produced in the same process, but in two forms of a homogeneous alloy and a core-shell
structure.
Keywords : Laser ablation, Au-Cu alloy nanoparticle, Core-shell
- - Assistant professor, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre (MERC), Karaj, Iran
46
46
st
NAMIC 2012 - May 30-31
Nano materials
209627829
nthesis and Characterization of Nanostructure Intermetallic
Compounds in Ni -Ti -Al System Using Mechanical
Alloying
Hesam Rezvani Sichani (1)Mehdi Salehi (2)Hosein Edris (3)Mansoor Toorani Farani (4)
h.rezvanisichani@ma.iut.ac.ir
Abstract :
Intermetallic compounds are advanced materials that have recently gained
considerable importance due to their mechanical and physical properties. Considering their
improved mechanical properties, formation of nanostructure intermetallic compounds has
received special attention. Ni-Ti-Al intermetallic compounds have significant importance given
their high strength, thermal resistance and corrosion resistance. Mechanical alloying followed
by appropriate heat treatment to produce nanostructure intermetallic compounds is being
widely used nowadays. This study aimed at investigating the effect of ball mill time and the
heat treatment after it on the formation of nanostructure intermetallic compounds in Ni -Ti Al
system. To do so, the Ni Ti Al
mixed powder was prepared and milled in a
planetary ball mill at different times. Products were evaluated by X-ray diffraction (XRD) and
scanning electron microscopy (SEM). Upon milling for
hour, Ni Al nanostructure
intermetallic compound was formed. The mixed powder was obtained after
hours milling
was annealed. Results obtained after heat treatment suggest the formation of ternary system
of intermetallic compounds such as Ni (Ti,Al) and Ni TiAl as well as binary compounds. Given
the formation of Ni-Ti-Al nanostructure system with desirable properties and considering the
simplicity and low cost of the process, mechanical alloying and heat treatment can also be
used to produce other intermetallic compounds.
Keywords : Mechanical alloying, Nanostructure intermetallic compound, Annealing, Ni-Ti-Al system
- - M.Sc., Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran
- - Professor, Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran
47
47
st
NAMIC 2012 - May 30-31
Nano materials
210630829
Synthesis of Ni Ti nanostructure intermetallic compound in
Ni -Ti system by mechanical alloying
Mansoor Toorani Farani (1)Mehdi Salehi (2)Hosein Edris (3)Hesam Rezvani Sichani (4)
m.tooranifarani@ma.iut.ac.ir
Abstract :
Ni-Ti intermetallic compounds have distinct properties that distinguish them from other
types of intermetallic compounds. These properties include shape memory, compatibility with
body environment, super elasticity property, high toughness, appropriate tribology behaviour
and high corrosion resistance. Mechanical alloying followed by appropriate heat treatment to
produce nanostructure intermetallic compounds is being widely used nowadays. This study
was an attempt to investigate the formation of nanostructure intremetallic compound in Ni-Ti
system, using mechanical alloying and subsequent heat treatment. Ni Ti
Initial powder
was milled in a planetary ball mill under argon atmosphere at different times and was
evaluated by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM). Results
showed that the Ni Ti nanostructure Intermetallic compound was formed after
hoar ball
mill. Also, heat treatment on
ºC lead to formation of NiTi and some titanium oxide in
addition to stabilizing Ni Ti nanostructure.
Keywords : Mechanical alloying, Nanostructure intermetallic compound, Annealing, Ni-Ti system
- - M.Sc., Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran
- - Professor, Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran
48
48
st
NAMIC 2012 - May 30-31
New materials
219657829
Effect of Fe O addition on crystallization of SiO -Na O-CaO
system glasses
P. Shahsavari (1)B. Eftekhari Yekta (2)V.K. Marghussian (3)N. Solati (4)
shahsavari.payam@gmail.com
Abstract :
Crystallization behavior of soda-lime foam glass composition investigated by addition
of iron oxide (Fe O ) up to
%wt using reducing agent such as SiC. Crystallization
temperature of Fe-bearing Diopside (Fe
Al Mg
)Ca
(Fe
Si Al ) O
,
Acmite/Aegirine NaFe(SiO ) decreased with increasing iron content from
oC to
oC.
Magnetite plays key role as an intermediate phase on which pyroxene heterogeneously
crystallizes. Presence of SiC also intensifies crystallization without remarkable change in
temperature. Samples with gr part weight Fe O , showed desirable foaming behavior along
with crystallization.
Keywords :
-Msc. Student, Iran University of Science and Technology
- Associate Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology
- Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology
- Bsc. Student, Iran University of Science and Technology
49
49
st
NAMIC 2012 - May 30-31
Bio materials
221663829
Surface modification of Polyurethane as a Novel Skin Dress
S. A. Ayati Najafabadi (1)H. Keshvari (2)Y. Ganji (3)
y.ganji@aut.ac.ir
Abstract :
The aim of this study is to design and fabricate an artificial skin dress for the purpose
of skin healing. A multilayer skin dressing included castor oil-based polyurethane synthesized
as the outer layer and two biopolymeric layers of heparin and chitosan as the inner layers
were fabricated. The surface of polyurethane was activated using two steps oxygen radio
frequency (RF) plasma. The surface of the modified PU films characterized by attenuated total
reflection Fourier transform infrared (ATR-FTIR) spectroscopy, and water drop contact angle
measurements. The ATR-FTIR spectrogram of the modified films showed new characteristic
peaks of PU. Also, heparin and chitosan were successfully immobilized on PU films. In vitro
cell culture study on the chitosan/heparin immobilized PU and poly (acrylic acid)-grafted PU
films showed compatibility of modified surfaces as well as virgin film with L
fibroblast cells.
Cell adhesion and proliferation of cells on the chitosan/heparin immobilized surfaces showed
better behavior compared with poly (acrylic acid)-grafted PU. It was concluded that
chitosan/heparin-immobilized surfaces can have a good potential to be used as a skin
replacement.
Keywords : Chitosan, Heparin, Polyurethane, Surface modification, Two-step plasma treatment
- - - Biomaterials Group, Biomedical Engineering Faculty, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
50
50
st
NAMIC 2012 - May 30-31
Nano materials
222666829
High temperature oxidation behavior of graphite coated by
dual layer of nano-SiC/SiC
H. Jafari (1)N. Ehsani (2)S.A. Khalifeh-Soltani (3)M. Jalaly (4)
maisam_jalaly@iust.ac.ir
Abstract :
In this research, a dual-layer coating was used to improve high temperature oxidation
resistance of graphite substrate. For first layer, silicon carbide was applied by pack
cementation method. Powder pack consisted of Si, SiC and Al O and heat-treated at
°C
in an argon atmosphere. SEM and XRD characterizations confirmed formation of SiC diffusion
coating with about
µm including compositionally gradient of C and Si elements.
Electrophoretic deposition (EPD) was used to deposit nano SiC (SiCn) as second layer.
Thickness of second layer of SiCn in corresponded optimal situation was µm. Samples with
single and dual layers were investigated in oxidation test at
°C. Results showed that an
extreme increase was occurred in oxidation resistance after application of second layer of
nano SiC. Weight loss value for single layer coating of SiC and dual layer coating of SiCn/SiC
after oxidation test for h at
°C were
wt.% and wt.%, respectively.
Keywords : Oxidation, Coating, Nano SiC, Pack Cementation, Electrophoretic Deposition
- MSC Graduated, Faculty of Materials and Manufacturing Technology, MUT University, Tehran, Iran
- Associated Professor, Faculty of Materials and Manufacturing Technology, MUT University, Tehran, Iran
- MSC Researcher Engineer, Faculty of Materials and Manufacturing Technology, MUT University, Tehran, Iran
- PhD student, Materials Engineering Department, Iran University of Science & Technology, Tehran, Iran
51
51
st
NAMIC 2012 - May 30-31
New materials
246738829
Metal matrix composites aluminium
and fiber carbon
Farzaneh vali ghazvini (1)Arman sedghi (2)
farzaneh.valighazvini@gmail.com
Abstract :
Over the past two decades– a period coinciding with publication of composites science
and technology – metal matrix composites (MMCs) have been transformed from a topic of
scientific and intellectual interest to a material of broad technological and commercial
significance. Metal matrix composites first as a unique technology appeared that military
systems need to their performance and the primary motivation for the development of
materials were created.One of the most important parameters in the study of metal matrix
composites contact surface formed is between the matrix and the ceramic reinforcement.
Because this area is determining power and resistance to cracking in the composites during
deformation. Now that this principle to form a strong bond between ceramic and wetting metal
is necessary, is accepted completely. Also all chemical reactions are also possible, be
controlled. In this study, The damping properties of aluminum matrix composites reinforced
with coated continuous carbon fibers were studied. The experimental results show that a CVD
carbon coating on the surface of T300 carbon fibers greatly improves the overall damping
capacity of Cf/Al composites. Coating of carbon fibers have been used by K2zrf6 so it creates
more favorable properties. Fibers from 10 seconds to 1 minute we tested. Pure aluminuim at
800˚C was melted and coated fibers pass through the molten. The best properties of
composite was achieved at the optimum condition the heating temperture fiber of 70˚C,
maintaining time fiber: 3hr , melting temperature of aluminium 800˚C . Also the microstructure
of such composites was also studied by SEM and TEM to better understand.
Keywords : Processing, Application, Carbon fiber, Metal-matrix composites (MMCs)
- M. Sc. Student, School of Metallurgy and Materials Engineering, College of Engineering, University of Imam khomeini Internati onal, Qazvin,
Iran
- Associate professor, School of Metallurgy and Materials Engineering, College of Engineering, University of Imam khomeini International,
Qazvin, Iran
52
52
st
NAMIC 2012 - May 30-31
264792830
Optimisation of Fibre Orientations in Composite Material by
Applying Simulating Annealing and Genetic Algorithm
Methods
Rasoul Khandan (1)Siamak Noroozi (2)Philip Sewell (3)Mehran Koohgilani (4)
Hamid Reza Hooshyarmanesh (5)
ras_khandan@yahoo.com
Abstract :
Recently fibre composite structures have become very attractive suitable candidate for
engineering applications. Composite materials have been used in the replacement and
rehabilitation of traditional structures or design and manufacture new applications. However,
the lack of knowledge and especially the non-linear behaviour of composite material limit
demands for them. Usually these barriers lead to over-designed products or producing based
on trial and error and designer’s experience Transverse shear and normal stress through
thickness are the main cause of nonlinear behaviour of composites. The effect of transverse
shear is ignored in current optimisation methods for laminated composites. In this paper
Simulated Annealing (SA) and Genetic Algorithm (GA), two stochastic optimisation methods,
are applied on penalty function which is recently modified by the author. The effect of
transverse shear is considered in this penalty function. The numerical results of SA and GA
optimisations are presented and compared.
Keywords :
- PhD researcher, Bournemouth University, Bournemouth, Dorset, UK
- - - School of Design, Engineering and Computing, Bournemouth University, Bournemouth, Dorset, UK
- Mechanical Engineering Department, Isfahan University of Technology, Isfahan, Iran
53
53
st
NAMIC 2012 - May 30-31
27381994
Effect of Electrical Parameters on Plasma Electrolytic
Oxidation Coatings of
Al Alloy
V. Dehnavi (1)B. Luan (2)X.Y. Liu (3)S. Rohani (4)
D. W. Shoesmith (5)
vdehnavi@uwo.ca
Abstract :
Plasma electrolytic Oxidation (PEO) is a novel technique to create ceramic coatings on
light weight metals particularly aluminum and magnesium alloys. PEO is a simple, high
efficiency and eco-friendly technology. The wear and corrosion resistance of components
manufactured from Al-based alloys can be drastically increased by the application of ceramic
coatings produced by PEO. The PEO process operates at potentials greater than typical
breakdown voltages of the original oxide films (typically
V). Breakdown of the film is
accompanied by multiple sparking on treated surfaces. Currently, PEO processes are in a
transition phase from research to commercial applications, mainly focused on the corrosion
and wear protection of light alloys. The properties of the coatings produced by PEO can be
controlled and altered by changing process parameters. Although a lot of researchers have
studied the PEO process, there is not much information available about the role of electrical
parameters such as frequency and duty cycle. In this study, the effects of frequency and duty
cycle on morphology, phase contents and growth rate of PEO coatings on Al
alloy
produced by pulsed uni-polar DC current was investigated using X-ray diffraction (XRD),
scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDX) . Coatings
were found to consist primarily of two phases: α-Al O and γ-Al O with varying ratios. It was
observed that changing the electrical parameters affects microstructure, ratio of phases and
surface morphology of produced coatings.
Keywords : Plasma electrolytic oxidation, alumina coating, duty cycle, frequency
- PhD Candidate, Department of Chemical and Biochemical Engineering, Western University, London, ON, Canada
- Senior researcher, professor, National Research Council Canada, London, ON, Canada
- Senior researcher, National Research Council Canada, London, ON, Canada
- Professor, Department of Chemical and Biochemical Engineering, Western University, London, ON, Canada
- Professor, Department of Chemistry, Western University, London, ON, Canada
54
54
st
NAMIC 2012 - May 30-31
Nano materials
27983799
Nano-crystalline Nickel Coatings Electrodeposited on Plain
Carbon Steel in Watts-Type Bath With and Without Additives
Fereshteh Mallakpour (1)Maryam Golozar (2)Zahra Dadkhah (3)Mohammad Ali Golozar (4)
Keyvan Raeissi (5)
fery50@gmail.com
Abstract :
Nickel coatings were electrodeposited on carbon steel in a Watts-type bath, using
direct current. To compare the effects of additives, dodecyl and saccharin were added to the
bath. Coatings were characterized using Scanning Electron Microscope, X-Ray Diffraction and
Atomic Force Microscopy. Micro hardness was also measured. Results showed that in all
cases, the texture of coatings was {
}. Semi-spherical morphology was observed in the
presence and absence of dodecyl. Conversely, saccharin led to a smooth surface. Values of
Ra and Rms showed that both additives reduce the roughness of the coatings. The roughness
of the coatings produced in the presence of saccharin was the lowest. Hardness
measurements showed that coatings produced in the bath with saccharin have the highest
micro hardness,. Calculating the grain size of the coatings showed that all the deposits have
nano-crystalline structures.
Keywords : Nickel coatings, Electrodeposition, Plain carbon steel, Saccharin, Dodecyl
- B.Sc, Department of Materials Engineering, Isfahan University of Technology, Isfahan
, Iran
- M. A. Sc Student and Research Assistant, Department of Materials Engineering, University of British Columbia, Vancouver, B.C, Canada
- B.Sc, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
- Professor, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
- Associate Professor, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
55
55
st
NAMIC 2012 - May 30-31
New materials
283849916
Study on MR Nanocomposites to Develop a Miniature
Gripper
Aref Naimzad (1)Yousef Hojjat (2)Mojtaba Ghodsi (3)
naimzad@modares.ac.ir
Abstract :
Magneto-rheological Nanocomposites (MRNCs), consisting of carbonyl iron particles
with nanometer dimension embedded in a silicone rubber matrix, display a variety of
interesting smart physical properties. The modulus of MRNCs can be controlled by strength of
magnetic fields. The MRNCs are proposed to manufacture newer products of less weight like
miniature grippers. The development of new products requires the characterization of the
rheological and mechanical behavior of the materials and the correct preparation for further
applications. A laser setup is used to prepare the nanosized carbonyl iron particles. The
µm carbonyl iron particles are ablated to
nanometers using CO laser setup. The MRNCs
is fabricated under isotropic condition and characterized by field emission scanning electron
microscopes (FESEM). In the course of material development, the magnetic attraction is
compared among four nanocomposite samples containing the different percentages of nanosized carbonyl iron particles. The mechanical property tests are conducted to determine the
hardness and the elastic modulus. The rheological tests are performed to study the curing
aspects of MRNCs. The magnetic properties of MRNCs are practically measured and
recorded. Through successful development of MRNCs, the produced MR nanocomposites are
used in its potential application for a miniature gripper. Developments of MR nano-composite
along with design of gripper enhance performance of micro-mechatronics system used in
medical operation and micro- material transportation as well.
Keywords : MR Nanocomposites, Carbonyl Iron, Silicone Rubber, Miniature Gripper, CO Laser
- PhD Student, Mechanical Engineering Department, Engineering Faculty, Tarbiat Moders University, Tehran, Iran
- Associate Professor, Mechanical Engineering Department, Engineering Faculty, Tarbiat Moders University, Tehran, Iran
- Assistant Professor, Mechanical Engineering Department, Engineering Faculty, Tarbiat Moders University, Tehran, Iran
56
56
st
NAMIC 2012 - May 30-31
Nano materials
294882918
Highly Selective Oxidation of Alcohols Using Nano-Sized
NiO/TiO -ZrO as a Novel Heterogeneous Catalyst
A.R. Massah (1)M. Azadi (2)Z. Shams ghahfarokhi (3)
massahar@iaush.ac.ir
Abstract :
Nano-sized NiO/TiO -ZrO which was synthesized by adsorption and "two solvents"
methods demonstrated very high catalytic activity in the selective oxidation of benzyl alcohols
to benzaldehydes with excellent yields and selectivity in short reaction times. The physical and
chemical properties of NiO/TiO -ZrO were investigated by XRD, XRF, BET, FT-IR and SEM
techniques. Influence of the catalyst support (SBA- , ZSM- , TiO -ZrO and Y), type of
metal oxide supported, method of loading and amount of nickel nitrate loading have been
thoroughly investigated. Moreover, the catalyst has shown excellent reusability in the process.
Keywords : Nano-sized NiO; TiO -ZrO ; Heterogeneous catalyst; Oxidation; benzyl alcohols
- Razi Chemistry Research Center, Islamic Azad University, Shahreza Branch, Shahreza, Isfahan, Iran
- - Young Researchers Club, Islamic Azad University, Shahreza Branch, Shahreza, Isfahan, Iran
57
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NAMIC 2012 - May 30-31
New materials
300900919
Properties of lightweight geopolymer with waste ashes and
palm oil clinker aggregates
Mohammad Khanzadeh (1)Gholamreza Khalaj (2)Ali Nazari (3)Shadi Riahi (4)
alinazari84@aut.ac.ir
Abstract :
In the present work, compressive strength of lightweight inorganic polymers
(geopolymers) produced by fine fly ash and rice husk bark ash together with palm oil clinker
(POC) aggregates has been investigated. Different specimens made from a mixture of fine fly
ash and rice husk bark ash with and without POC were subjected to compressive strength
tests at , and
days of curing. The specimens were oven cured for
h at
oC and
then cured at room temperature until , and
days. Addition of POC to the geopolymeric
mixtures caused reduced strength at all age of curing. However a considerable increase in
strength to weight ratio was acquired for the specimen with a high content of fine POC
particles at
days of curing. Thermogravimetric analysis and Fourier transform infrared
spectroscopy both also are in agreement with the obtained results from compressive strength
tests. It was shown that increasing the POC content reduced the weight loss during
thermogravimetric analysis and hence increases the heat stability.
Keywords : Geopolymer; compressive strength; fly ash; rice husk bark ash; palm oil clinker; TGA; FT-IR
- Department of Material, Majlesi Branch, Islamic Azad University, Iran
- - - Department of Materials Science and Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran
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NAMIC 2012 - May 30-31
Nano materials
3099271012
Investigation the effect of Nanohydroxyapatite on Tensile
Properties of PHB/nHA Composite Scaffold Used for Bone
Tissue Engineering
A. Saadat (1)A. behnamghader (2)S. karbasi (3)
saadat1386@gmail.com
Abstract :
In This study Hydroxyapatite nanoparticles (nHA) was synthesized via sol-gel method
and Poly -hydroxybutyrate\Hydroxyapatite (PHB\HA) Nanocomposite scaffolds were prepared
by solvent casting and particulate leaching Technique. Synthesized NanoHA was confirmed by
XRD . The scaffolds were prepared from %wt polymer solution. amount of nHA was - %wt
with
%wt salt (NaCl) particles. Scanning electron microscopy (SEM) was used for study
structure of prepared scaffolds and size of nHA particles. uniform distribution of NanoHA in
scaffolds were investigated by Wavelength Dispersive X-ray Spectroscopy (WDXA). pore size
was in range of
µm. Tensile strength and elastic modulus increased by increasing the
amount of nHA in scaffolds.
Keywords : PHB\nHA composite scaffolds - bone tissue engineering- tensile properties
- Department of Materials Engineering, Majlesi Branch Islamic Azad University, Isfahan, Iran
- Biomaterials group, Materials & Energy Research Center, Tehran, Islamic Republic of Iran
- Department of Medical Physics and Biomedical engineering, Isfahan University of Medical Science Isfahan, Iran
59
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NAMIC 2012 - May 30-31
Semi conductors
3109301012
Synthesis and Characterization of Nano ZnO Fibers by
Electrospining Method
M.Kavosh (1)H. Moallemian (2)H. molaei (3)A. Ighan (4)
A. Momtazan (5)M.E. Dehdashti (6)
m.kavosh@ymail.com
Abstract :
Electrospinning is a versatile and straight forward process for synthesizing onedimensional ( D) nanostructures of diverse materials. Conventional fiber synthesis techniques
of wet, dry, melt, and gel spinning, are capable of producing polymer fibers with diameters
down to the micrometer range while electrospinning, also known as electrostatic spinning, is
capable of producing polymer fibers with nanoscale diameters. In this paper, we report a
simple chemical method for the preparation of ZnO semiconducting nanofibers from zinc
acetate/PVA by using electrospinning method. So the fibers thus obtained were calcined at
700°C K for
hours and ceramic ZnO fibers were obtained. The morphological features,
crystallinity, and optical properties of the ZnO nanofibers were studied by SEM images, XRD
pattern, UV-vis and PL and FT-IR Spectroscopy and used of the scherer equation for the
approximation crystallite size. SEM images showed that the diameters of ceramic ZnO fibers
calcined at 700°C are found –80 nm. XRD results showed that the obtained ZnO nanofibers
were composed of hexagonal wurtzite phase with very good crystallinity. The crystallite size
obtained as 32 nm using Scherer formula. The PL and UV absorbtion spectra showed a broad
green band emission and a relatively narrow absorbtion band at 550 and 274 nm respectively.
Keywords : Electrospining, Nano fibers, PVA, Zinc acetate, Calcinations
- - M.S. Inorganic chemistry, Chemistry Group, Science Department, Behbahan Branch, Islamic Azad University, Behbahan, Iran
- M.S. Physic solid state, Chemistry Group, Science Department, Behbahan Branch, Islamic Azad University, Behbahan, Iran
- - - Researcher of nano technology, Chemistry Group, Science Department, Behbahan Branch, Islamic Azad University, Behbahan, Iran
60
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NAMIC 2012 - May 30-31
Nano materials
3189541018
ANTIBACTERIAL PROPERTIES OF AU-AG ALLOY
NANOPARTICLES
N. S. Tabrizi (1)M. Tazikeh (2)N. Shahgholi (3)
s.tabrizi9@gmail.com
Abstract :
This paper reports a preliminary study on the effect of alloying on the antibacterial
properties of silver and gold. Au-Ag alloy nanoparticles were synthesized in water by coreduction of metal salts by sodium borohydride in the presence of sodium citrate as a capping
agent. The particle morphology and size were studied by transmission electron microscope.
The Au-Ag ( : ) particles were of ± nm size with a good monodispersity. The formation of
alloy was concluded by spectrophotometry in the visible region complemented by Energy
Dispersive Spectroscopy (EDS). The antibacterial activity of the particles was examined
against Escherchia coli ATCC
. Interestingly, the alloy particles exhibited greater
antibacterial activities than the pure metals. The antibacterial property of the alloy
nanoparticles enhanced even further with increasing the molar ratio of silver.
Keywords : Nanoparticles, Au-Ag alloy, Synthesis, Antibacterial effect
- - - Iran Materials and Energy Research Center
61
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NAMIC 2012 - May 30-31
Nano materials
3199571018
Synthesizing of nano-structure MgNi Y alloy by mechanical
milling and heat treatment
L. Chitsaz Khoyi (1)Sh. Raygan (2)
l.chitsaz@ut.ac.ir
Abstract :
In this study, an attempt was made to synthesize the Mg Ni Y catalyst from pure Ni,
Mg and Y elemental powders by mechanical milling and combination of mechanical milling
and heat treatment methods. In this regard, powders of elements were ball milled at different
conditions and then heat treated at
ºC for hour. X-ray Diffraction (XRD) and Scanning
Electron Microscopy (SEM) methods were used to evaluate the characteristics of the milled
mixtures. It was found from the results of XRD analysis that by increasing the ball milling time
from to
hours, the crystallite size of Nickel decreased from
to nm and lattice strain
increased from
% to
%, but ternary intermetallic was not observed after milling. XRD
patterns showed that nano-structure MgNi Y was formed after heat treatment. SEM
micrographs of
hours milled samples revealed nano-size particles and agglomerates of Mg
Ni Y ternary intermetallic alloy.
Keywords : Ball mill, Hydrogen storage, Nano-structure, MgNi Y compound
- M. Sc. Student, School of metallurgy and materials engineering, College of Engineering, University of Tehran, Tehran, Iran
- Associate professor, School of metallurgy and materials engineering, College of Engineering, University of Tehran, Tehran, Ir an
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NAMIC 2012 - May 30-31
3209601018
Effect of manufacturing process parameters on the
microstructure and mechanical properties of FGHMs
Nima Khademian (1)Habib Inanloo (2)Reza Gholamipour (3)Ali Kaflou (4)
nkhademian@gmail.com
Abstract :
In the present study, functional gradient hardmetals (FGHMs) with combination of
WC- %Co-x TiC-yTiN (x= ,
y= ,
) were produced by powder metallurgy method
under controlled atmosphere furnace. This article describes the development of functionally
graded hardmetals prepared in situ by sintering in reactive atmosphere. The microstructures of
the FGHMs were examined by Scanning Electron Microscopy (SEM), elemental analysis
(EDS) and X-ray diffraction (XRD). Mechanical properties of the samples were examined by
micro-hardness test.
Keywords : Functional gradient hardmetals, WC + Co, fcc phase
- M.Sc., Islamic Azad University, Islamshahr Branch, Tehran, Iran
- M.Sc., Islamic Azad University, Saveh Branch, Tehran, Iran
- - Ph.D., Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
63
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NAMIC 2012 - May 30-31
Nano materials
3239691019
Physical and Chemical properties of Solid Solutions Based
on CuInSe -FeSe
Sh. M. Hasanli (1)U. F. Samedova (2)N. H. Darvishov (3)V. E. Bagive (4)
hasanli_sh@rambler.ru
Abstract :
The crystal structre of solid solutions of the (CulnSe ) -x ( Fese) x has been
studied.The values of the lattice parameters a and c of the tetragonal phase solid solutions
revealed a significant axial distortion of the elementarary crystal cell.It is established that at
soom temperature for solid solutions of the (CulnSe ) -x (FeSe) x at first there is a decrease
of electricaal conductivity with increasing concentration FeSe to x=
, and then its gradual
increase with increasing concentrtion x.
Keywords : Solid Solutions of the (culnse ) -x (FeSe) . The electrical conductivity, X-ray
Institute of Physics of the Azerbaijan National Academy of Sciences, H.javid, aven.
- - Baku State University
64
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NAMIC 2012 - May 30-31
Magnetic materials
3269781020
Using Electric and Magnetic Fields in Electrospinning
Method for Synthesis of Fe O Nanoparticles Doped on ZnO
Nano Fibers
M. Kavosh (1)H. Moallemian (2)A. Ighan (3)M. Dehdashti (4)
m.kavosh@ymail.cm
Abstract :
In this paper, nano-particles of iron oxide in the presence of specific electric and
magnetic field orientation is placed on zinc oxide nano-fibers. In this methodology initially with
chemical sol-gel method the magnetic iron oxide nanoparticles were synthesized. In the next
step the synthesized particles are added to precursor polymer of polyvinyl alcohol (PVA) and
zinc salt. By using electrospinning method, nano-fibers in the distance between the nozzle and
the collector fibers foil passed through a strong electric and magnetic field. After the
identification tests and SEM imaging it’s observed the iron oxide nanoparticles have placed
well on the fibers.
Keywords : Nano, Iron oxide, Zinc oxide, Doping, Electrospining method
- M.S. Inorganic chemistry, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran
- M.S. Physic solid state, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran
- - Researcher of nano technology, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran
65
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NAMIC 2012 - May 30-31
Nano materials
3299871020
Synthesis and Characterization of Titanium Oxide
Nanoparticles (TiO ) with Rutile Crystal Structure
M. Kavosh (1)H. Moallemian (2)A. Ighan (3)M. Dehdashti (4)
m.kavosh@ymail.com
Abstract :
In this paper, titanium oxides (TiO ) nanoparticles using titanium trichloride salts and
ammonium hydroxide synthesized using a combination of reflux and calcination. Based on
The SEM images, the synthesized particles had same spherical morphology and of nano scale
to
nm. XRD analysis showed that the maximum peak intensity seen at sheet (
at
angle θ= . °. These sheets are indicators of the rutile phase that conforms to standard
card (JCPDS No. ). For better identification of samples EDX analysis and UV-vis and
FT-IR spectroscopy was used.
Keywords : nano, titanium oxide, reflux, calcination, rutile phase
- - Researcher of nano technology, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran
66
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NAMIC 2012 - May 30-31
Nano materials
3309901020
Synthesis and Characterization of Cluster Nano-Flowers Zinc
Oxide and Study Optical Properties
M. Kavosh (1)H. Moallemian (2)A. Momtazan (3)A. Ighan (4)
M. Dehdashti (5)
m.kavosh@ymail.com
Abstract :
Compared to the other methods, ZnO nano flowers were prepared as an easy by
chemical materials such as NH OH and TOA and salt of zinc and very fast method. FT-IR
spectra showed a strong band at
cm−1 is attributed to the Zn-O stretching band XRD
results showed that the obtained ZnO nano flowers were composed of hexagonal wurtzite
phase with very good crystallinity. The PL and UV absorbtion spectra showed a broad green
band emission and a relatively narrow absorbtion band at 550 and 274 nm respectively. EDX
analysis confirmed that the separator substance had removed completely and the product is
very pure and only contains compounds of zinc and the oxygen. The images show that ZnO
nano flowers with the length of 400nm and 50nm in diameter were synthesized.
Keywords : Zinc oxide, nano flowers, hydrothermal method, calcinations
- - - Researcher of nano technology, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran
67
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NAMIC 2012 - May 30-31
Bio materials
33510051026
Materials Nanointerfaces for Regenerative Medicine and
Tissue Engineeering
Yoshihiro Ito (1)
y-ito@riken.jp
Abstract :
It is very important to modify the surfaces of biomaterials for regulation of cells in the
development of regenerative medicine or tissue engineering. Biomaterials are categorized into
three primary types, metallic, ceramic, and polymers. Here the biological modification of
biomaterial surfaces such as metals, ceramics, and polymers and the effects of such of
biological modifications are discussed. It is well known that cellular compatibility is regulated
by three interactions; one is with extracellular matrices (ECM), second with neighboring cells,
and third with soluble biosignals such as growth factors. Biomaterial researchers have
immobilized ECM, cell adhesion factors, and growth factors on various materials to regulate
cellular functions. Herein, biosignaling of ECM, cell adhesion factors, and growth factors are
reviewed and biomaterial designs to activate biosignaling mechanisms are discussed.
Keywords : Biomaterials, cell regulation, immobilization, micropatterning, fusion protein
- Nano Medical Engineering Laboratory, RIKEN Advanced Science Institute - Hirosawa, Wako-shi, Saitama
-
Japan
68
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NAMIC 2012 - May 30-31
Bio materials
33710111027
Two-Step Sintering of Dense Nanostuctured
Hydroxyapatite/Titania composite
Ali Farzin (1)Mehdi Ahmadian (2)M.H. Fathi (3)
a.farzin@ma.iut.ac.ir
Abstract :
Two-step sintering (TSS) has been applied to suppress the accelerated grain
growth of Hydroxyapatite (HA) and Titania (TiO ) nanoparticles in the HA-TiO composites in
the last sintering stage. Application of this method showed that the final grain size of
HA- wt.%TiO is maintained lower than
nm, while through conventional sintering it
reaches higher than
nm. To find how important the temperatures at sintering steps might
be, several TSS regimes were conducted. The results showed that the temperatures were
critical at both sintering stages. The optimum regime consisted of heating the green bodies up
to
˚C in the first step of sintering and then holding at 1050˚C for about 25h in the second
step. This yielded the finest microstructure with no exaggeration in grain growth. The
specimens prepared by optimum TSS regime resulted in no pernicious α-TCP phase.
Keywords : Nano structured Composites, Two Step Sintering, Hydroxyapatite, Scanning Electron
- - - Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
69
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NAMIC 2012 - May 30-31
Nano materials
3391017111
Stress Relaxation Behavior of Carboxylated Styrene
Butadiene Rubber – MWCNT Nanocomposite
F.Abbasi sourki (1)Gh.Bakhshande (2)M.Alimardani (3)
f.abbasi@ippi.ac.ir
Abstract :
This study examines the stress relaxation behavior of carboxylated styrene butadiene
rubber(XSBR)-multiwall carbon nanotube(MWCNT) nanocomposites prepared using a ball mill
in the latex form. The subsequent experiments were carried out on solid samples. The stress
relaxation experiment can be taken into account among the best approaches to pursue the
microstructure of a nanocomposite particularly CNT one. CNT nanocomposites displayed a
higher elastic behavior both in opposite and negative imposed second step strains, however, a
stronger elastic behavior was observed for negative one.
Keywords : Carboxylated styrene butadiene rubber –MWCNT- Relaxation time
- Academic member of IPPI, Assistant professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute
(IPPI),Tehran, Iran
- Emeritus professor of IPPI, Professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran
- M.Sc student of IPPI, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran
70
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NAMIC 2012 - May 30-31
Nano materials
3401020112
An Efficient Study on Crystallization Behavior of Poly
(ethylene terephthalate)/TiO Nanocomposites
M. Farhoodi (1)S. M. Mousavi (2)R. Sotudeh-Gharebagh (3)Z. Emam-Djomeh (4)
Abdolrasul Oromiehie (5)
farhoodi@ut.ac.ir
Abstract :
Poly(ethylene terephthalate)/TiO nanocomposite films were prepared by melt
blending of PET and anatase TiO . Anatase TiO at three levels ( , and %) added to the
polymer matrix. DSC analyses show that the presence of nanofillers noticeably affects the
crystallization temperature and final degree of crystallinity of PET. The crystallization
temperature moves to higher temperatures in comparison to neat PET while the value of
melting point does not change considerably. TiO nanoparticles play the role of
heterogeneous nucleus and generally promote the crystallization process in the obtained
PET/TiO nanocomposites. The glass transition of nanocomposites was not changed
significantly with increasing TiO content which confirms weak cross-linking reaction between
PET chains and TiO nanoparticle surface.
Keywords : Poly(ethylene terephthalate), TiO , Nanocomposite, Crystallization, Glass Transition
- - - Department of Food Science & Technology, Faculty of Agricultural Engineering, University of Tehran, Karaj, Iran
- Multiphase Systems Research Lab, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
- Iran Polymer and Petrochemical Institute, Tehran, Iran
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NAMIC 2012 - May 30-31
New materials
35410621117
Formation Mechanism of TiCr Intemetallic by Calciothermic
co-reduction Method
O. Bayat (1)A. R. Khavandi (2)R. Ghasemzadeh (3)
obayat@iust.ac.ir
Abstract :
In this work, TiCr intermetallic was successfully synthesized by calciothermic coreduction of the TiO and Cr O powders. Differential thermal analysis and X-ray diffraction
were used for determining the formation mechanism of this compound. It was found that the
molten Ca reacts with Cr O through an exothermic reaction at about
°C and Cr and CaO
were formed. By increasing the temperature, CaTiO was formed because of the reaction of
CaO and TiO . As the temperature increased to about
°C, Ti was formed because of the
Ca reaction with the remained TiO and CaTiO through an exothermic reaction. Finally, TiCr
was formed by the mutual diffusion of Ti and Cr elements. The obtained TiCr powder
contained
ppm oxygen and showed the capability of a hydrogen absorption material after
activation.
Keywords : TiCr Intermetallic, Calciothermic co-reduction, Differential thermal analysis, Hydrogen
- PhD Candidate, School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
- Associated Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
- Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
72
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NAMIC 2012 - May 30-31
Nano materials
36610981120
Effect of anodizing electrolyte temperature on Al-epoxy
bonding strength
S. Mohagheghi (1)A. Hatefi (2)A. Kianvash (3)
s.mohagheghi@hotmail.com
Abstract :
Adhesive bonding of aluminum requires activating of surface to improve the adhesion
process. A thin layer of anodized aluminium oxide, containing nano-sized pores leads to a
strong polymer/metal bond. In this work, an epoxy coating was applied on Al anodized
surfaces. A
wt.% H PO solution was utilized as an electrolyte. The effect of the electrolyte
temperature in the range between
- °C on the adhesion strength was examined using a
pull-off method. Surface morphology and topography were identified, using FE-SEM and AFM,
respectively. Effects of surface topography on hydrophilic behavior of the nano structured Al
anodized layer were investigated using a contact angle test. Changes in the anodizing
conditions led to remarkable improvements in adhesion strengths.
Keywords : Anodizing, Electrolyte temperature, Adhesion, Epoxy coating
- M.Sc Student, Department of Materials Engineering, Faculty of Engineering, Islamic Azad university, South Tehran Branch, Iran
- M.Sc Student, Department of Materials Engineering, Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran
- Professor, Department of Materials Engineering, Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran
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NAMIC 2012 - May 30-31
Nano materials
37111131123
Catalytic Activity of Machanochemically Prepared StrontiumDoped Nanostructural Lanthanum Manganite
H.Tamaddon (1)A.Maghsoudipour (2)
tmdn.imn.86@gmail.com
Abstract :
The fuel cells (FC) are distinguished as generating of distributed energy and are
electrochemical devices of low environmental impact. In current work, the strontium-doped
lanthanum manganite, a ceramic material used as cathode in solid oxide fuel cells (SOFCs).
The nanocrystalline La Sr MnO (LSM) was prepared by varying the milling time of
planetary mill during the mechanochemical method. After X-ray diffraction confirms the
formation of perovskite LSM the cathode powder was made ready from sintered pellets at
oC for hours in air. The gas chromatography (GC) test was used in order to study the
catalytic activity of porous LSM cathode material in methane gas conversion and oxygen
reduction. For investigate the volume percent, size and distribution of porosities secondary
electron microscopy (SEM) imaging was utilized. The results of this research confirmed that by
increasing grinding time as an important factor in LSM mechanochemical synthesis, the
catalytic characteristics as well as pore distribution is modified.
Keywords : SOFC, LSM cathode, mechanochemicl synthesis, nanocrystallite, catalytic activity
- M.S. student, Ceramics Department, Materials and Energy Research Center, Tehran
- Professor assistant, Ceramics Department, Materials and Energy Research Center, Tehran
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NAMIC 2012 - May 30-31
Bio materials
37511251124
Construction and Stability of Glucose Biosensor Based on
Carbon Past Electrode Modified with Colloidal Gold
Nanoparticles
Nahid Hossein Fakhrabadi (1)Ali Asghar Rohani (2)Afshin Farahbakhsh (3)Saeed Sohrabi (4)
nahid.hosseinfakhrabadi@yahoo.com
Abstract :
Using glucose biosensor is important in detection various amounts of glucose. In this
paper, a biosensor electrode called (Aunano/CPE) electrode was prepared which is a modified
carbon fermentation electrode with colloidal gold nanoparticles composed of carbon graphite
powder, paraffin oil and colloidal gold nanoparticles ( nm dia.) and put in contact with
glucose oxidase enzyme in the presence of phosphate buffer by a semi-permeable
membrane. Ag/AgCl reference electrode and (Aunano/CPE) electrode were used for
performing biosensor amperometric and glucose was detected in a definite concentration
range by applying
V constant potential to the electrodes. Experiment design was performed
by Taguchi method for both glucose concentration and pH factors on three levels for which the
optimum values were obtained as mM and , respectively. The biosensor remained stable for
days based on the activity of glucose oxidase enzyme in optimum conditions.
Keywords : biosensor, electrode, glucose, amperometric, glucose oxidase
- M.Sc. Student, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
- Assistant Professor, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
- Assistant Professor, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
- M.Sc. Student, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
75
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NAMIC 2012 - May 30-31
Semi conductors
37711311125
Investigation of ring opening polymerization of
octamethylcyclotetrasiloxane by N-anionic nanostructured
polyaniline
Leyla Shadi (1)Homa Geibi (2)Kazem Dindar Safa (3)Ali Akbar Entezami (4)
shady2821leyla@yahoo.com
Abstract :
Nanostructured polyaniline was synthesized through the chemically oxidative
polymerization with interfacial method. The interfacial method is a facile chemical route to
preparation of high-quality polyaniline nanofibers under ambient conditions using
aqueous/organic interfacial polymerization. The nanofibers have nearly uniform diameters.
The synthesis is based on the well-known chemical oxidative polymerization of aniline in a
strongly acidic environment, with ammonium peroxydisulfate as the oxidant. Instead of using
the traditional homogeneous aqueous solution of aniline, acid, and oxidant, the polymerization
is performed in an immiscible organic/aqueous biphasic system, to separate the byproducts
(inorganic salts, oligomers, etc.) according to their solubility in the organic and aqueous
phases.
Keywords : conducting polymer, graft polymerization, polydimethylsiloxane, chemical modification, N- - P. H .D. student of polymer chemistry, Lab. Of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Professor of organic chemistry, Lab. Of Organo Silicone, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Professor of polymer chemistry, Lab. Of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
76
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NAMIC 2012 - May 30-31
Nano materials
38311491127
Fabrication of highly ordered gold nanorods film by thermal
evaporation of gold into a porous anodic alumina
Zahra Soltani (1)Mohammad Noormohammadi (2)Fahimeh Behzadi (3)
zsoltany@yahoo.com
Abstract :
A simple method for fabrication of high ordered gold nanorods film is introduced. The
procedure is based on thermal evaporation of gold into a porous anodic alumina film. The
porous anodic alumina film was fabricated by combining the hard and mild anodization. It was
found that gold nanorods configuration affected by the porous anodic alumina film structure
such as pore diameter and length. Furthermore the evaporation process change the rods
diameter along the nanopores via the decreasing the pore mouth during the gold deposition.
Keywords : Gold nanorod, Porous anodic alumina, Thermal evaporation
- Faculty member, Department of Physics, Shiraz Branch, Islamic Azad University, Shiraz, Iran
- - Ph. D student, Department of Physics, Shiraz University, Shiraz, Iran
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NAMIC 2012 - May 30-31
New materials
38411521127
Produce A
Aluminum alloy foam by using silicone rubber
granules
R.Pourgholam (1)S.M.H.Mirbagheri (2)S.H.Mirdamadi (3)
reza.pourgholam@gmail.com
Abstract :
Metal foams are among those new materials that are recently used for many industrial
applications for their special properties. An economical innovation procedure has been
proposed to produce metal foams. In this innovation method, It used to silicone rubber
granules as spacer to make voids and cellular structure in molten Aluminum (A
). The
effect of size and percent of silicone granules on mechanical behavior and density of Metal
foams has been studying.
Keywords : A
composite foam, Casting, Silicone rubber granules, Mechanical properties
- M.S. degree on Metallurgy engineering, Amirkabir University of Technology
- Assistant Professor, Amirkabir University of Technology
- B.S. degree on Metallurgy engineering, Majlesi Azad University
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NAMIC 2012 - May 30-31
Nano materials
38611581128
Evolution of microstructure texture for multilayered Al
(
)/Al (
) composites by accumulative roll bonding
process
S. Akhavan (1)A. Tahvilian (2)A. Saghayannejad (3)M. Toroghinejad (4)
s_a_metallurg@ma.iut.ac.ir
Abstract :
Accumulative roll-bonding (ARB) process is an intense plastic deformation process
that has been performed for a multilayered Al/Al composite from pure Aluminum (
) sheets
and Aluminum-Magnesium (
) sheets to develop ultra-fine grains below µm in diameter
and to improve mechanical properties. The ARB process up to six cycles is performed at
ambient temperature under unlubricated conditions. The ultra-fine grains surrounded by clear
boundaries begin to appear at the third cycle, and the specimen after six cycles shows a
microstructure covered with nano-grains with an average diameter of
nm. The hardness of
the specimens ARBed by one, three and five cycles varies inhomogeneously in the thickness
direction; having peak values near the surface and the center. This is due to the redundant
shear strain and wire brushing. It has been seen that the textural evolution has no similarity
with the simple shear texture; the components can be well represented by the ideal rolling
texture components. Texture analysis revealed fiber textures have been discovered with
continuous of the ARB process cupper. Brass, S and Rotated Cubic textures identify which
their differences are in intensity of ARB process.
Keywords : Accumulative roll-bonding, Aluminum (
), Aluminum-Magnesium, textures, Cubic textures
- - M.Sc, Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran
- M.Sc, Islamic Azad University, Najafabad Branch, Isfahan, Iran
- Associate Prof., Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran
79
79
st
NAMIC 2012 - May 30-31
New materials
38811641128
Meso Finite Element Modeling of Triaxial Braided
Composites
Arezu Emami-Khalkhali (1)Hossein Hosseini-Toudeshky (2)
arezu.emami@gmail.com
Abstract :
Among textile composites, braided composites have received increasing attention from
scientists due to their exceptional mechanical properties and are utilized in aerospace,
automobile and marine industries. Meso-scale finite element (FE) modeling of textile
composites is a powerful tool for homogenization of mechanical properties, study of stress–
strain fields inside the unit cell, determination of damage initiation conditions and sites and
simulation of damage development. This paper takes into account the finite element analysis
of a triaxial braided carbon/epoxy composite unit cell (TBC), applied in the aerospace industry,
under periodic boundary condition from meso approach. The geometry modeling in meso FEmodeling has been accomplished by ABAQUS-V.6.10.1 software. The general homogenized
properties of the entire unit cell have been obtained in two directions of axial tows and
transverse by having the mechanical properties of tows and resin separately.
Keywords : Triaxial Braided Composites, Periodic Boundary Condition, Finite Element Analysis
- M.Sc. Graduate, Amirkabir University of Technology, Faculty of Aerospace Engineering, Tehran, IRAN
-prof., Amirkabir University of Technology, Faculty of Aerospace Engineering, Tehran, IRAN
80
80
st
NAMIC 2012 - May 30-31
Bio materials
39211761129
Bio-corrosion and Biocompatibility evalution of Ni-free Zrbased bulk metallic glasses
Amin Monfared (1)Shahab Faghihi (2)Mana Novin (3)
aminmonfared@yahoo.com
Abstract :
Bulk metallic glasses (BMGs) demonstrate attractive properties for potential biomedical
applications, owing to their amorphous structure. Two Ni-free Zr-based BMGs with
composition of Zr Cu
Fe Al
and Zr Cu Fe Al
(at.%) were prepared by
suction casting technique for this study and their feasibility as biometallic materials were
evaluated by studying bio-corrosion and biocompatibility behavior. Bio-corrosion experiment
was performed in phosphate buffer solution (PBS, pH= ) at
C and Surface
morphologies and corrosion products in corroded locations were investigated by scanningelectron microscopy (SEM) and energy dispersive X-ray (EDX) respectively. It was found that
Zr Cu Fe Al
had higher passive region than that of Zr Cu
Fe Al
however
these BMGs were susceptible to pitting corrosion. Biocompatibility evalution performed by
surface wettability and cell attachment using MG osteoblast cells. Pre-immersion treatment
in
vol% HNO solution performed for stabilizing Zr-oxide formed on the BMGs surfaces
before surface wettability and cell attachment studies. Experiments Results showed that
immersed BMGs in
vol% HNO solution had significantly higher surface hydrophilicity and
attached cells when compared with conventional biometal of Ti- Al- V.
Keywords : Ni-free Zr-based bulk metallic glasses, bio-corrosion, biocompatibility
- M.Sc. Student, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
- Ph.D, director of Tissue Engineering and Biomaterials Research Center in Ntional Institute of Genetic Engineering and Biotechnology
(NIGEB), Tehran, Iran
- - M.Sc. Student, Tissue Engineering and Biomaterials Research Center, Ntional Institute of Genetic Engineering and Biotechnology
(NIGEB), Tehran, Iran
81
81
st
NAMIC 2012 - May 30-31
Nano materials
39411821129
Synthesis of thermosensitive PVA-g-NIPAAm nanohydrogels
by radiation polymerization
Marziyeh Fathi (1)Ali Reza Farajollahi (2)Ali Akbar Entezami (3)
aaentezami@yahoo.com
Abstract :
Thermosensitive nanohydrogels that are triggered by changes in environmental
temperature thus resulting in in situ hydrogel formation have recently attracted the attention of
many investigators for biomedical applications. In addition, Nanohydrogel are considered
suitable drug delivery systems for their unique features, such as a large surface to volume
ratio, and for the possibility to tune their size and properties. In the present work,
nanohydrogels of poly (vinyl alcohol) -g-N-isopropyl acrylamide (PVA-g-NIPAAm) are
synthesized with too lower X-ray radiation dose between - Gy of PVA and NIPAAm dilute
aqueous solution at ambient temperature in the presence of tetrakis(hydroxymethyl)
phosphonium chloride (THPC) due to its rapid oxygen scavenging abilities and hydrogen
peroxide as a source of hydroxyl radical.
Keywords : Nanohydrogels, thermosensitive, radiation, swelling, N-isopropylacrylamide
- Ph.D student of Organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Medical physics department, Faculty of medicine, Tabriz University of Medical Science, Tabriz, Iran
- Professor of Organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
82
82
st
NAMIC 2012 - May 30-31
Bio materials
39511851129
Novel Amphiphilic block copolymer of Poly (citric acid)-bPoly (L-lactide)-b-Poly (citric acid) with ABA architecture:
Synthesis, Characterization and Micellization
Homa Gheybi (1)Ali Akbar Entezami (2)
Abstract :
A novel biodegradable amphiphilic ABA block copolymer poly(citric acid)-b-poly(Llactide)-b-poly(citric acid), (PCA-PLLA-PCA), was synthesized by melt polycondensation
reaction of citric acid and hydroxyl telechelic poly(L-lactide). In this block copolymer, block (B)
is linear PLLA and block (A) bringing both hydrophilicity and functional group along the
backbone for biomolecule coupling, is poly (citric acid) (PCA) block. Citric acid is a nontoxic
metabolic product of the body (Krebs or citric acid cycle), and has been approved by the Food
and drug administration of the United States (FDA) for its use in humans. It was found that the
citric acid can be reacted with a variety of hydroxyl containing monomers at relatively mild
conditions. The chemical structure of the resulting copolymer was characterized by various
analytical techniques such as Fourier transform infrared spectroscopy (FT-IR), H nuclear
magnetic resonance ( H NMR) spectroscopy, gel permeation chromatography (GPC), thermal
gravimetry analysis (TGA) and derivative thermal analysis (DTG). The successful preparation
of the linear hydroxyl telechelic polylactide and PCA-PLLA-PCA block copolymer was
confirmed by H NMR.
Keywords : Block copolymer, Micelle, Polylactide
- PhD student of polymer chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Professor of polymer chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
83
83
st
NAMIC 2012 - May 30-31
Nano materials
39611881130
The effect of La Sr CoO nanoparticles on nano electro
mechanical systems by XRD, X-powder and SEM techniques
Neda Ghorbanzadeh (1)Ali Bahari (2)Najmeh Araghi (3)
nedagh25@hotmail.com
Abstract :
In this study, the effects of LSCO ((La Sr )CoO ) on both nano electro
mechanical and nanostructural properties have been investigated. We have performed a
series of experiments to synthesis LSCO nano particles with using sol-gel method and study
the sample structures with XRD (X-ray diffraction), SEM (Scanning Electron Microscopy)
techniques and X-Powder( based on Debye-Scherrer formula) method. The obtained results
indicated that the LSCO with amorphous structure can be used as a good gate dielectric
material for the future of MISFET (Metal Insulator Semiconductor Field Effect Transistor)
transistor.
Keywords : Nano transistor, LSCO, gate dielectric and sol-gel method
- MSc, Department of Physics, Islamic Azad University Fars Science and Research branh, Iran
- Dr, Department of Physics, University of Mazandaran, Babolsar, Iran
- MSc, Department of Physics, Islamic Azad University Hamden Science and Research branch, Iran
84
84
st
NAMIC 2012 - May 30-31
Nano materials
39711911130
Synthesis and Characterization of zinc powder using
reduction method by natural gas
S.Rahimi.M (1)J.Moghaddam (2)
Moghaddam@sut.ac.ir
Abstract :
Zinc nano powder was produced by a novel efficient method. The procedure of
synthesis is the combination of reforming of natural gas and reducing of zinc oxide in a single
unit. This phenomenon involves the reduction of zinc oxide by natural gas as a reducing agent
for production of zinc vapors. Then the condensation of solid particles occurs on a low
temperature copper substrate which is placed at the end of the furnace tube. Zn particles with
an average crystallite size of
nm were formed. Since most properties of fine particles are
size dependent, the particle size as a critical property have been determined in this article.
Different characterization methods such as X-ray diffractometry (XRD), scanning electron
microscopy (SEM), laser particle size analyzer and energy-dispersive X-ray spectroscopy
(EDX) were used. Effect of parameters on average particle size of samples was investigated.
Keywords : zinc particles, Nano crystallites, reduction, characterization
- MSc student, Materials engineering department, Sahand University of Technology, Tabriz, Iran
- Assistant professor, Materials engineering department, Sahand University of Technology, Tabriz, Iran
85
85
st
NAMIC 2012 - May 30-31
Nano materials
39811941130
Growth and investigation of nanostructural properties of
perovskite nano tubes by XRD, X-powder and SEM
techniques
Salileh Asadollahzadeh (1)Ali Bahari (2)Najmeh Araghi (3)
salileha@yahoo.com
Abstract :
Nanoparticle of lanthanum strontium cobalt ( La Sr CoO ), a complex perovskitetype oxide has been synthesized by using sol-gel method. The nanoparticles thus obtained
have been characterized by powder X-ray diffraction, X-powder ( based on Debye-Scherrer
formula ) and scanning electron microscope ( SEM ). The XRD analysis of the gel reveals that
phase pure LSCO powder is formed at
C without detection of any intermediate crystalline
phase.
Keywords : lanthanum strontium cobalt, nanoparticles, sol-gel method, SEM and XRD
- MSc, Department of Physics, Islamic Azad University Fars Science and Research branh, Iran
- Dr., Department of Physics, University of Mazandaran, Babolsar, Iran
- MSc, Department of Physics, Islamic Azad University Hamden Science and Research branch, Iran
86
86
st
NAMIC 2012 - May 30-31
New materials
39911971130
Microstructure Refining of a Cast TiAl alloy via
Homogenizing and Post Heat-Treatment Processes
Siavash Zamani (1)Hekmat Razavizadeh (2)Mohammad Jahazi (3)
zamanisiavash@yahoo.com
Abstract :
In the present study, the homogenizing and post heat-treatment processes were
employed to refine the as-cast microstructure of a TiAl alloy. In order to this reason,
microstructure evolution, phase consistence and hardness of the alloy were characterized and
studied using optical and scanning electron microscopies and Vickers micro-hardness
measurements. The nominal composition of the cast alloy was Ti- Al- Cr at.% which
produced using the vacuum arc re-melting (VAR) process. Initial microstructure of the cast
ingot was a large size columnar structure and different post heat-treatment routs were
designed so that the final structure was a fine duplex (DP) microstructure. Homogenizing
process was performed at
°C for
hours in the controlled atmosphere. Also, in order to
find the optimized heat-treatment cycle, the effects of variations of heating rate in range of °
C/min to °C/sec, solution temperature in range of
to
°C, solution time in range of
to
min and cooling rate in range of
°C/min to water quench condition, on the
characteristics of the microstructure evolution and different phases present in the structure
were studied. Analysis of the results indicated that, a combination of heating and cooling rates
increasing and selection of optimum solution temperature leads to achieve a fine duplex
microstructure.
Keywords : TiAl, heat treatment, microstructure, refining, hardness
- Master of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and
Technology, Tehran, Iran
- Professor of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and
- Professor of Mechanical Engineering, Department of Mechanical Engineering, Ecole de Technologie Superieure, Montreal, Canada
87
87
st
NAMIC 2012 - May 30-31
New materials
40012001130
The Effects of Chromium Addition on the Mechanical
Properties of a Binary TiAl Alloy at Elevated Temperatures
Abstract :
In the present study, the influence of chromium addition on the mechanical behavior of
a binary TiAl at elevated temperatures was studied. The compositions of the binary and
ternary alloys was Ti- Al and Ti- Al- Cr at.% prepared and cast using vacuum are remelting (VAR) process. Homogenizing and a post heat-treatment processes were employed
and performed on the cast ingots to refine the microstructure of the samples to a refined
duplex (DP) structure. Tension test at elevated temperatures was selected as a representative
for the mechanical behavior of the alloys. Tensile yield and ultimate strengths and elongation
of the samples were tested and measured at ambient temperature,
,
,
,
,
and
°C. In the other hand, optical and scanning electron microscopies followed by energy
dispersive X-ray spectroscopy (EDS) and image analyses were used to characterize the
microstructure of the samples. It was found that Cr addition to about at.% can increase both
the strength and ductility of TiAl in ambient and elevated temperatures. The yield strength and
elongation of the binary alloy were improved for about
% and % respectively at ambient
temperature and % and
% at
°C. The ultimate strength of both alloys was increased
about
and % for binary and ternary alloys in temperature range of
°C. Moreover, it
was cleared that chromium can perform such effects by changing in both the microstructural
and interstitial features of binary TiAl. The effects of Cr on the strength and ductility of the alloy
were intensified drastically above
°C which showed the thermally activated nature of the
performed changes.
Keywords : Titanium Aluminide, Chromium, Mechanical Properties, Alloying Design
88
88
st
NAMIC 2012 - May 30-31
New materials
40112031130
he Effects of V and Cr Addition on the Deformation
Mechanisms and Mechanical Behavior of a Binary TiAl Alloy
Abstract :
In the present study, to determine the influence of the Vanadium and Chromium
additions on the deformation mechanisms of the TiAl based alloys, theoretical and
experimental approaches were used. In one hand, the changes of electronic structure
parameters in the lattice of ternary TiAl alloys were calculated by employing the discrete
variational Xα cluster method. Calculations were set such to consider the ternary TiAl
containing third alloying elements for about
at.% in the hypothetical composition.
Parameters changes of the bond strength, the bonding anisotropy ratio and the lattice
resistivity to the micro-deformations, by addition of V and Cr alloying elements were calculated
and discussed. In the other hand, experimental tension tests were designed and carried out at
ambient temperature on the standard samples of the Ti- Al, Ti- Al- V and Ti- Al- Cr
alloys which produced with the similar compositions to those calculated. Calculations results
show that addition of V and Cr alloying elements to binary TiAl can increase the yield strength
of the alloy by increasing the lattice resistivity to motion of preferred dislocations. Also,
addition of both the Cr and V alloying elements results in improving the ductility of TiAl alloys
by reducing the resistance of the lattice to motion of the l/ <
] ordinary dislocation and / >
<
] superdiclocation relative to the ><
] superdislocation which is in agreeing with the
experimental results. Moreover, Results show that the Cr addition has more ductilizing effect
on the binary TiAl compared to the V because of the fact that addition of Cr has a larger
influence on nearing the tetragonal ratio to
Keywords : TiAl, deformation mechanisms, discrete variational-Xα method, mechanical behavior, alloy
89
89
st
NAMIC 2012 - May 30-31
Nano materials
40212061130
Synergistic Effect of ZnO and Functionalized Carbon
Nanotube on the Improvement of Filler Dispersion
F.Abbasi sourki (1)M.Alimardani (2)G.R.Bakhshandeh (3)
m.alimardani@ippi.ac.ir
Abstract :
In this study preparation of carboxylated styrene butadiene rubber (XSBR), multiwall
carbon nanotube nanocomposite (MWCNT) was investigated by using a ball mill and in the
latex form. Rheological properties such as storage modulus and viscosity along with FT-IR
spectrums were used to follow the microstructure of nanocomposite. The results showed that
addition of ZnO, along with functionalized carbon nanotube can effectively activate the
carboxylated latex and consequently improve the rheological properties of nanocomposite.
Keywords : Carboxylated styrene butadiene rubber (XSBR)- Rheological properties-MWCNT-ZnO
- Academic member of IPPI, assistant professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute
(IPPI),Tehran, Iran
- M.Sc student of IPPI, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran
- Emeritus professor of IPPI, professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran
90
90
st
NAMIC 2012 - May 30-31
Nano materials
40412121130
Surface analysis of polyvinyl chloride/kaolin nanocomposites
Mazeyar Parvinzadeh Gashti (1)Hengameh Allahyary (2)Pouya Nasraei Ghomi (3)
hindameh@yahoo.com
Abstract :
Polymeric nanocomposites are a class of materials in which nanoscale particulates
such as layered clays or spherical inorganic minerals are dispersed within polymeric matrices.
In this paper, poly (vinyl chloride) (PVC) based nanocomposites containing kaolin was
prepared by melt compounding. Influence of kaolin on surface properties of PVC was
investigated by the use of various surface analysis instruments including atomic force
microscopy (AFM), scanning electron microscopy (SEM) and reflectance spectroscopy (RS).
AFM and SEM figures of the resultant nanocomposites illustrated increased surface
roughness compared to pure PVC. Optical properties of nanocomposite films were finally
determined by the aid of reflectance spectrophotometer. It can seen from optical
measurement of composites containing kaolin particles that reflectance curves changes after
incorporation of kaolin in composite.
Keywords : Polyvinyl chloride; Kaolin; SEM
- - - Department of Textile, Islamic Azad University, Shahre Rey Branch, Tehran, Iran
91
91
st
NAMIC 2012 - May 30-31
Nano materials
40512151130
Superabsorbent nanohydrogels of poly (N-isopropyl
acrylamide –co-itaconic acid) grafted on starch: Synthesis
and swelling studies
Karim Pourjamal (1)Marziyeh Fathi (2)Roghieh Alizadeh (3)Ali Akbar Entezami (4)
Abstract :
Poly(N-isopropylacrylamide) (PNIPAAm) hydrogels are attracting more and more
interest in biomedical applications because they exhibit a well-defined lower critical solution
temperature (LCST) in water around –34◦C which is close to the body temperature. Natural
polymers like starch are of considerable interest in the fields of biotechnology, biomedical
engineering, and pharmaceutical controlled release devices. In the present work,
biodegradable and thermosensitive superabsorbent nanohydrogels were synthesized by graft
copolymerization of poly N-isopropyl acrylamide (PNIAAm)/itaconic acid (IA) onto starch via
free radical copolymerization in the absence of chemical crosslinker agent. The starch grafted
nanohydrogels were characterized by FT-IR and thermal gravimetric analysis (TGA). Dynamic
light scattering (DLS) showed 60-100 nm size distribution for the synthesized hydrogels. TGA
studies indicated that grafting of poly(NIPAAm-co-IA) onto starch leads to an overall
improvement in the thermal stability. The effect of different amount of ammoniumpersulfate as
the polymerization initiator, on the water absorption of the superabsorbent polymers, pH
sensitivity and thermal behaviors were investigated. The water absorption of the grafted
copolymer synthesized by 10.0 wt% APS gave the highest water absorption degree of 45 g /g.
Hydrogels were sensitive to environmental pH. So, the swelling behaviors of the
superabsorbent nanohydrogel were studied at various pH values between 3 and 12, at room
temperature. Under acidic pH values (3), most of the carboxylate anions are protonated, so
the main anion–anion repulsive forces are eliminated and consequently swelling values are
decreased. At higher pH values, some of the carboxylate groups are ionized and the
electrostatic repulsion between COO- groups causes an enhancement of the swelling
capacity. The obtained nanohydrogels may potentially be used in biomedicine, pharmaceutics
and controlled delivery of bioactive agents.
Keywords : Stimuli-sensitive, polymers, Multicompartmental systems, Volume phase, transition
- Msc student of organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- - Ph.D student of organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Professor of Organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
92
92
st
NAMIC 2012 - May 30-31
Nano materials
4141242121
Synthesis and surface modification of core/shell quantum
dots with PEG for biological detection and imaging
Hadi Ostadi (1)Mohamad. Alizadeh (2)Soheila yaghmaei (3)Manochehr Hakim (4)
Maziar Hakim (5)Hossein Kharghanian (6)
m-alizadeh@aut.ac.ir
Abstract :
Semi-conductor Quantum dots (QDs) are a unique class of inorganic fluorophore. As a
result of their exceptional photophysical properties, they are gathering widespread attention. In
this work presented here, cdse/zns core/shell tunable quantum dots were synthesize in two
stage by solvothermal method . Their application in biological fluids or aqueous environment
requires modulation of chemical nature of quantum dot surfaces. As a result, their solubility is
changed and additional chemical functionalities are added. To develop water-soluble,
biocompatible QD micelles, the core-shell CdSe/ZnS of red emission were synthesized and
capped in poly ethylene glycol (PEG).The resulting QDs-polymer nanocomposite particles are
suitable for applications in biomedical imaging and detection, as a consequence of their
colloidally stability in water suspensions and exhibition of good photostability. The core/shell
structure was proved by approach characterizations such as transmission electron
microscopy(TEM), Fourier transform infrared (FTIR), UV- Spectrometry and photo
luminescence spectroscopy.
Keywords : Quantum dots, Nanoparticle, core/shell, capping agent, PEG
- - - MSC student, Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
- Faculty of Polymer and Color Engineering, Amirkabir University of Technology, Tehran, Iran
- Associate professor, Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
- Assistant professor, Department of Material science and Engineering , Sharif University of Technology, Tehran, Iran
93
93
st
NAMIC 2012 - May 30-31
Nano materials
4151245121
Investigation on the wear behavior of Cu/TiO Nanocomposites Produced by Powder Metallurgy and internal
oxidation
A.H.Moghannian (1)A.Abazarpoor (2)M.R.Gharabeick (3)A.Bahrami (4)
S.K.Sadrnezhad (5)
abazarpoor@mehr.sharif.edu
Abstract :
Electrical contacts should have good thermal and electrical conductivity and certain
strength. The copper base nano-composites reinforced with fine TiO particles have almost
identical electrical and thermal conductivity with copper; in addition, because of the dispersion
of the fine TiO particles, Cu/TiO composite has more strength than pure Cu, which improves
copper matrix strength through impeding dislocation movement. In this work, first Cu and Ti
powders were mechanically alloyed for h under Argon atmosphere and then Cu O powders
were added as oxidant. The specimens, containing different amounts of TiO were produced
by in-situ oxidation of Cu-Ti pre-alloyed powders. For compaction, at the first step powders
pressed under MPa pressure at
°C and then pressed at
MPa in room temperature.
The compact was then sintered at
°C for h under argon atmosphere. Physical and
mechanical properties such as density, specific electrical resistivity and hardness of the
products were altered with amount of TiO in Cu matrix. Microstructure and composition of the
specimens were studied before and after internal oxidation using SEM equipped with EDS
analyzer.
Keywords : Copper base nanocomposite, TiO particles, internal oxidation, wear rate, pin on disk
- - M. Sc Student, Dept of materials science and engineering in Sharif University of Technology
- - B. Sc Student, Dept of materials science and engineering in Sharif University of Technology
- Professor, Dept of materials science and engineering in Sharif University of Technology
94
94
st
NAMIC 2012 - May 30-31
Nano materials
4181254121
Preparation and characterization of high energetic Al/Ni coreshell nanostructures
H. Beigi Nasrabadi (1)M. zarei (2)B. Shahabi Kargar (3)S.A. Sajjadi (4)
ho_beygi@yahoo.com
Abstract :
Aluminum powders are mainly used as energetic additives for propellants. However,
particle agglomeration, formation of protective oxide layers on the aluminum particles and high
ignition delay time and low ignition velocity of particles, in particular when nano particles are
used, lead to incomplete burning of Al particles and subsequently decreasing the propellant
efficiency. In this study in order to improve combustion behavior of aluminum particles,
nanometric nickel shell coated on the surface of aluminum nanoparticles. Fabrication of such
A/Ni core- shell nano structures by electroless nickel deposition (EN) investigated and high
efficiency EN process modeled using Artificial Neural Network (ANN) media. Based on
presented model it is possible to design an EN bath with the maximum plating rate, while
minimum materials are used and maximum efficiency of process are appeared. These
samples charactrizated by scanning electron microscopy (SEM), transmission electron
microscopy (TEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The
results shows, Ni particles were deposited on the surface of aluminum nano particles and form
a thin and uniform nickel shell within about nm thickness around aluminum cores.
Keywords : aluminum nano particles; Electroless nickel (EN) deposition; Artificial neural networks (ANN)
- M.Sc student, Ferdowsi University of Mashhad, P.O. Box
-
- M.Sc student, Sharif University of Technology, P.O. Box
, Mashhad, Iran
-
, Tehran, Iran
- - Noah Research Center, Mashhad, Iran
- Professor, Ferdowsi University of Mashhad, P.O. Box
-
, Mashhad, Iran
95
95
st
NAMIC 2012 - May 30-31
New materials
4221266121
Effects Initial Press Pressure on of MoSi - vol% WSi
Composite Synthesized to SHS Method
R. sayad (1)S.A. Tayebifard (2)K. Ahmadi (3)
a-tayebi@merc.ac.ir
Abstract :
MoSi has been used widely as heating elements due to its high electrical conductivity,
thermal shock resistivity, and remarkable oxidation resistivity in high temperatures. On the
other hand, monolithic MoSi shows extreme brittleness and poor impact strength at lower
temperature, and low strength and creep resistance at elevated temperature (>
). To
overcome these weaknesses, solid solution of MoSi /WSi was prepared by Self-Propagating
High Temperature Synthesis (SHS). For this purpose, W, Mo, and Si powders with specific
stoichiometric ratio were mixed by shaker to obtain solid solution of MoSi - vol% WSi .The
obtained mixture was pressed by a uniaxial press under pressures
,
,
,
and
MPa in order to prepare green discs. Then, these discs synthesized in an atmosphere
control reactor. During synthesis process, the temperature of ignition and combustion were
measured and obtained
and
respectively by thermocouple. Finally, the
characteristics and morphology of the solid solution were studied by X Ray Diffraction (XRD)
and Scanning Electron Microscope (SEM) respectively.
Keywords : MoSi -
vol% WSi , combustion synthesis, composite, high temperature materials
- Student, Semi- conductor Group, Material Engineering Department, Materials & energy research, Karaj, Iran
- - Assistant professor, Semi- conductor Group, Material Engineering Department, Materials & energy research, Karaj, Iran
96
96
st
NAMIC 2012 - May 30-31
Bio materials
4271281121
Nanowire based cell for Harvesting Energy From in-vivo
environment
Abdolhossein Sa'aedi (1)Hossein Rouzegar (2)Alireza Malahzadeh (3)
a.h,saaedi@iaubushehr.ac.ir
Abstract :
This paper discusses technologies used to harvest energies from in-vivo environment.
The discussion mainly concentrated on nanogenerators based on nanowires which are
employed for converting chemical energy (chemical interplay in body), biomechanical energy
(such as muscle stretching), vibration energy (such as heart rate sound, sound waves) and
biohydraulic energy (such as blood flow, contraction of blood vessel) into electric energy. At
the end this paper studies an approach for harvesting biomechanical and biochemical
energies from living organisms simultaneously. This system, by using aligned nanowire arrays,
can power medical nanosystems and nanodevices through converting vibration,
biomechanical and biohydrulic energies into electricity. On the other hand by using biofuel cell
structure, this hybrid cell can convert biochemical (glucose/O ) energy in biofluid into
electricity. This technology can provide adequate power required for feeding nanodevices and
nanosystems or at least to indirectly charge battery of the device. This technology can provide
a sound basis for designing wireless self-powered nanodevices with direct energy harvesting
from in-vivo environment.
Keywords : in-vivo environment, Biofuel Cell, nanogenerator, nanowire, self powered nanosystem
- MSc student, Department of Electronics, bushehr branch, Islamic Azad University, Iran, Bushehr
- MSc student, Department of Electronics, Golpaygan Payam University, Iran, Golpaygan
- Assistant professor, Department of Electronics, bushehr branch, Islamic Azad University, Iran, Bushehr
97
97
st
NAMIC 2012 - May 30-31
Nano materials
4311293121
Structural and Magnetic Properties of Nanocrystalline
SrFe O Hexaferrite by Co-Precipitation Method
Arvin Eskandari (1)Mansoureh Ganjali (2)Masoud Aminzare (3)
ganjali.m@gmail.com
Abstract :
Nanocrystalline strontium hexaferrite (SrFe O ) powders have been synthesized
using the Co-precipitation method. The ferrite precursors were achieved from mixtures of
strontium and ferric chloride in a aqueous media whit out any surfactants and soft templates.
After washing and drying, the as-received powder were calcinated at different temperatures at
and
oC for constant annealing time h in an air atmosphere. The powders formed
were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and
Vibrating Sample Magnetometer (VSM). It was found that the single-phase SrFe O
powders were obtained by increasing the calcination temperature at
oC for h. Moreover,
the results indicated that the maximum saturation magnetization (
emu/g) was achieved
by increasing the annealing temperature
oC because of the formation of a nanocrystalline
powder. Wide coercivities (
–5100 Oe) can be achieved at different synthesis
temperature. Likewise, the microstructure and the magnetic properties of the produced Sr–M
ferrite powder were strongly dependent on the synthesis temperature.
Keywords : Hexaferrite, Synthesis, Magnetic properties, Co-precipitation
- MSc Student, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre(MERC),Karaj, Iran
- PhD, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre(MERC),Karaj, Iran
- Researcher, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
98
98
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NAMIC 2012 - May 30-31
New materials
4351305121
Evaluation of mechanical properties of Al/NiP composites
fabricated by accumulative roll bonding (ARB) process
Hossein Baharipour (1)Habib Danesh Manesh (2)Gholamreza Shahri (3)
hbp2006@gmail.com
Abstract :
In this study, aluminum matrix composite reinforced by micron nickel powder was
successfully produced and the effects of number of ARB cycles and the amount of nickel
content on the mechanical properties of composites were investigated. The results compared
with ARB processed monolithic aluminum. According to the results of tensile tests, it is shown
that the tensile strength of the composite, as a function of nickel content, has a maximum
value at vol.%, which is
times higher than that of the annealed aluminum. It is also found
that the tensile strength and hardness of the ARB processed composites and monolithic
aluminum increase with the number of cycles. However, the tensile strength and hardness of
the composites are much higher than those of the monolithic aluminum. The tensile test
results revealed that the elongation of the composites is lower than that of the monolithic
aluminum.
Keywords : Metal matrix composites, Accumulative roll bonding, Aluminum composites, Mechanical
- - Student of Master of Science, Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shir az, Fars,
Iran
- Associated Professor, Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Far s, Iran
99
99
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NAMIC 2012 - May 30-31
Bio materials
4401320122
Influence of concentration of antibiotic (Cephalexin) on the
rheological behavior of calcium phosphate nano-composite
cement pastes
R.Shiri (1)S.Hesaraki (2)E.Ghasemi (3)
s.hesaraki@merc.ac.ir
Abstract :
Injectable calcium phosphate cements (CPC) are widely used as bone substitutes in
minimally invasive surgery. The rheological properties play an important role in the process of
cement delivery into the bone defects. In this study the influence of Cephalexin on the
rheological behavior of CPC was investigated at
°C. Different amounts of antibiotic ( –10
wt.%) were added to CPC pastes composed of calcium hydrogen phosphate dihydrate and
tetracalcium phosphate at a mass ratio of 1:1 and 3wt.% nano-crystalline hydroxyapatite (nHA)
as a nucleating agent. In all exams, amount of CPC was constant, but P/L ratio increased with
increasing amount of antibiotic. Rheological properties were measured with rheometer in
rotation and oscillation modes. The results showed that CPC pastes containing different
percentages of antibiotic at different shear rates exhibited different rheological behaviour.
Viscosity increased as amount of antibiotic was increased. Although shear thinning is the main
rheological behaviour for all samples at low shear rates. But shear thickening behaviour can
be seen at higher shear rates. It reveals that increasing of antibiotic concentration can change
the viscosity behaviour of pastes, and it was made by interaction between particles of CPC
and antibiotic.
Keywords : Rheology, Calcium phosphate cement, Nano-hysroxyapatite, Antibiotic
- Master Student, Department of nanotechnology and advanced material, Materials and energy research center, karaj, Iran
- Assistant professor, Department of nanotechnology and advanced material, Materials and energy research center, karaj, Iran
- Assistant professor, Institute for color science and technology, Tehran, Iran
100
100
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NAMIC 2012 - May 30-31
Semi conductors
4421326122
Piezoelectric Nanowire toward Harvesting Energy From invivo environment
Abdolhossein Sa'aedi (1)Mohammad Orvatinia (2)Hossein Rouzegar (3)
a.h,saaedi@iaubushehr.ac.ir
Abstract :
This paper discusses technologies used to harvest energies from in-vivo environment.
The discussion mainly concentrated on nanogenerators based on Piezoelectric nanowires
which are employed for converting biomechanical energy (such as muscle stretching),
vibration energy (such as heart rate sound, sound waves) and biohydraulic energy (such as
blood flow, contraction of blood vessel) into electric energy. At the end this paper studies an
approach for harvesting biomechanical and biochemical energies from living organisms
simultaneously. This system, by using aligned nanowire arrays, can power medical
nanosystems and nanodevices through converting vibration, biomechanical and biohydrulic
energies into electricity. On the other hand by using biofuel cell structure, this hybrid cell can
convert biochemical (glucose/O ) energy in biofluid into electricity. This technology can
provide adequate power required for feeding nanodevices and nanosystems or at least to
indirectly charge battery of the device. This technology can provide a sound basis for
designing wireless self-powered nanodevices with direct energy harvesting from in-vivo
environment.
Keywords : in-vivo environment, Piezoelectric nanowire, nanogenerator, self powered nanosystem
- MSc student, Department of Electronics, Bushehr branch, Islamic Azad University, Iran, Bushehr
- The Faculty member, Department of Electronics, Applied Science of Information and Communication Technology, Iran, Tehran
- MSc student, Department of Electronics, Golpaygan Payam University, Iran, Golpaygan
101
101
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NAMIC 2012 - May 30-31
Semi conductors
4471341122
Sol-gel Synthesis and Characterization of Barium Strontium
Titanate Thin Films
A. Najari (1)M.A. Bahrevar (2)A.R. Aghaei (3)
najari.atefeh@gmail.com
Abstract :
Barium strontium titanate Ba -xSrxTiO (BST) thin films have been prepared by sol–
gel technique using barium acetate (Ba(CH3COO)2), strontium acetate (Sr(CH3COO)2) and
titanium isopropoxide (Ti(OC3H7)4) as starting materials. Acetic acid and 2-methoxy-ethanol
were selected as solvents. BST films of different thickness were deposited layer by layer onto
pre-cleaned platinized silicon (Si/Pt) substrates by spin coating. The films were characterized
in terms of their crystalline structure (X-ray diffraction) and microstructure (field emission
scanning electron microscopy). The results indicate that the BST coatings exhibit perovskite
structure when annealed at 700 ˚C. The thicknesses of the BST thin films were measured by
spectroscopic ellipsometry in the wavelength range of 200-800 nm at an incidence angle of 70
˚.
Keywords : Barium strontium titanate, Thin film, Microstructure, Sol-gel process, Spin-coating
- Student of master of science of ceramic department of Materials and Energy Research Center (MERC)
- Associate professor of semiconductor department of Materials and Energy Research Center (MERC)
- Assistant professor of ceramic department of Materials and Energy Research Center (MERC)
102
102
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NAMIC 2012 - May 30-31
New materials
4511353123
A study on aluminum matrix composite reinforced with a
two-dimensional network of interconnected steel wires
fabricated by lost foam casting
H.R. Pakzaman (1)A.R. Khavandi (2)M. Divandari (3)
hr.pakzaman@gmail.com
Abstract :
The current investigation involves fabrication and characterization of aluminum alloy
(A
) matrix composites reinforced with the interconnected, two-dimensional, steel wire
performs. The composites were produced by lost foam casting process and were heat treated
to get ‘reaction interface’ (RI) Micro hardness and tensile properties of the matrix, as-cast and
heat treated composites have been determined and the microstructure of the specimens was
examined with optical and scanning electron microscopes. Micro structural characterization
conducted on the as-cast composite samples showed some pores at the Al matrix/steel wire
interface. However, nearly all the heat treated composites showed a completed bonding
because of the formation of reaction layer at the interface. Hardness and strength of
composites increased as compared to matrix alloy. The mechanical properties of these
composites were measured and the results were correlated with the microstructure
observation. While micro hardness of the composite showed variation from
to
Hv
across the interface in the as-cast composite, annealed (
°C) composite showed a
micro hardness of
Hv at the interface indicating the effectiveness of the heat
treatment. The results have been discussed in terms of wetting between steel wires and the
matrix, particularly the increase of hardness and tensile strength to the formation of ‘reaction
interface’ due to annealing The width of the interface increased with annealing time and
temperature.
Keywords : Aluminum matrix composites, Reaction interface, Annealing, Mechanical properties, Lost foam
- Master of Science, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology (IUST), Narmak,
Tehran, Iran
- - Associate Professor, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology (IUST), Narmak,
Tehran, Iran
103
103
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NAMIC 2012 - May 30-31
Nano materials
4531359123
An Investigation through Reflection Coefficient of a NanoMetallic Grains and Glass Oxide Compound
H. Shahmirzaee (1)A. Gharati (2)A.Kamaldar (3)
kamaldarehsan@yahoo.com
Abstract :
In this paper the reflection coefficient of a mixture of glass oxide and nanograins of
some noble metals (gold, silver and copper) have been derived using T-matrix approach. In
addition the effect of spherical metallic nanograin shape on the resonance shift of the
reflection coefficient has been analyzed and the associating plots have been plotted. For the
three investigated metals, their resonance wavelengths have been altered according to the
shapes and orientation of the grains relating to each other. The results obtained from the two
used methods, confirm the authenticity of each other.
Keywords : Metallic nanograins, T-matrix approach, Reflection coefficient, Glass oxide
- Prof., Maleke Ashtar university, Shiraz, Iran
- Prof., Shiraz Payam-e Noor university, Shiraz, Iran
- M.Sc. Student, Shiraz Payam-e Noor university, Shiraz, Iran
104
104
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NAMIC 2012 - May 30-31
Nano materials
4681404126
Fabrication of hight conductive circuits via inkjet printting
F.Haghdoost (1)F.Mohtaram (2)V.motaghitalab (3)A.K.Haghi (4)
S.M.Bidoki (5)K.Mahfoozi (6) GH.B.Salimi (7) M.Abasi (8)
fatememohtaram@yahoo.com
Abstract :
A convenient method has been developed for applying patterned nickel tracks on
polyester fabric for electronic applications. The process comprises inkjet printing of an
aqueous palladium (II) solution on surface treated polyester fabric, followed by reduction to
metallic palladium and electroless nickel plating. The nano-structure of the nickel pattern was
investigated using scanning electron microscopy (SEM) and the size of the nanoparticles were
in a rang of
nm.In addition the electrical conductivity was evaluated using four probe
technique and results showed reliable and stable conductivity about
S/m. Using a
desktop inkjet printer,the procedure was successfully applied for manufacturing inter digitated
conductive pattern as used for many applications such as antenna, electronic circuit, coil,
ECG sensor, and capacitor.
Keywords : Inkject printing, nickle, electroless, nano particle
- - - - - - - Textile engineering department, Faculty of engineering, University of Guilan, Rasht P.O.BOX
Rasht, Guilan -Iran
- post code:
-
-
- Textile engineering Faculty, Yazd University, Yazd -Iran
105
105
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NAMIC 2012 - May 30-31
Nano materials
4691407126
A novel approach for synthesis of silver nanoparticles
F.Mohtaram (1)F.Haghdoost (2)V.motaghitalab (3)A.K.Haghi (4)
fatemeh_haghdoost@yahoo.com
Abstract :
In recent years metallic nanoparticles have been focused by researchers due to their
unique electronic, optical, mechanical, magnetic and chemical properties Silver nanoparticles
were prepared by chemical reduction method. Silver nitrate was taken as the metal precursor
and sodium brohydrat as a reducing agent. The formation of the silver nanoparticles was
monitored using UV-Vis absorption spectroscopy. The UV-Vis spectroscopy revealed the
formation of silver nanopartícles by exhibing the typical surface absorption maxima at
nm
from the UV–Vis spectrum.
Keywords : silver, nano particle, UV-VIS, reduction agent
- - Student, Textile engineering department, Faculty of engineering, University of Guilan, Rasht, Guilan -Iran
- Assistant professor, Textile engineering department, Faculty of engineering, University of Guilan, Rasht, Guilan -Iran
- Professor, Textile engineering department, Faculty of engineering, University of Guilan, Rasht, Guilan -Iran
106
106
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NAMIC 2012 - May 30-31
Nano materials
4811443127
Mechanical properties and gelation behavior of gel-cast ZrO
bodies
Seyed Mohammad Mahdi Rouholamini (1)Morteza Zandrahimi (2)Babak Nasr (3)
m.zandrahimi@mail.uk.ac.ir
Abstract :
In this study, zirconia samples are produced by a gel-casting process. The effects of
the percentage of polymeric components and the sintering temperature on the green strength
and the final bending strength are investigated. The results revealed that increasing the
amount of monomer and cross-linker leads to an increase in the green bending strength.
However, the final bending strength was decreased. Microstructural investigations indicated
that increasing the sintering temperature led to an increase in the grain size and in the relative
density. From the viewpoint of sintered density and final bending strength, the best sintering
temperature is considered to be
°C.
Keywords : Suspension, Rheology, Bending strength, Gel-casting
- M. Sc. Student, Department of Metallurgy and Materials Science, Faculty of Engineering, ShahidBahonar University of Kerman
- Associate Professor, Department of Metallurgy and Materials Science, Faculty of Engineering, ShahidBahonar University of Kerman
- M. Sc. Student, Department of Metallurgy and Materials Science, Faculty of Engineering, ShahidBahonar University of Kerman
107
107
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NAMIC 2012 - May 30-31
Nano materials
52515751210
Effect of Medium and solvent Changing on Polystyrene Seed
Nano-Particles Synthezied via Dispersion Polymerization
Ali Bavi (1)Faramarz Afshar Taromi (2)Hormoz Eslami (3)
eslamih@aut.ac.ir
Abstract :
Nano-particles can prepared from materials with different chemical nature like metals,
metal oxides, ceramics, polymers, organic materials, carbon and bimolecular. Polymer colloids
are defined as a dispersion of the monodisperse polymeric particles in liquid medium.
Researches in this field is interesting for years. Recently a lots of researches are discussed
about synthesis of polymeric nano-particles. These nano-particles can be used in different
applications like biopolymer, bioelectric improve impact resistance. Synthesized nano-particles
based on polymerization method can be spherical or non-spherical, that the methods used in
each of them are various and finally the particles are created with different applications. Lots
of methods like dispersion, emulsion and suspension polymerizations are used for synthesis
of these nano-particles. One of the benefits of this method is performing in two steps, that in
the first stage the seed particles are prepared and in the second stage the polymerization can
be continued for production of monodisperse composite. Type of solvent, temperature of the
polymerization are the factors affecting the shape of nano-particles. In this article, the
monodisperse polystyrene (PS) seed particles are produced and the different parameters
contributing in production of them are explained. In previous works , ´-azobis(isobutyronitrile)
(AIBN) initiator and polyvinylpirrolidone (PVP) stabilizer ware used for synthesis of polystyrene
particles, Hence in this article Dimyristyle proxydicarbonate (MYPC) is used and the average
diameter of particles (Dn) and coefficient of variation (Cv) also are explained.
Keywords : Spherical Nano-particles, Dispersion Polymerization, Monodisperse, Particle Size
- MS Student of Polymer Engineering, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr Campus, Mahshahr, Industrial
Area, Khuzestan, Iran
- Assistant Professor, Department of Polymer Engineering & Color Technology, Amirkabir University of Technology (Teharan Polytechnic),
Tehran, Iran
- Professor, Department of Polymer Engineering & Color Technology, Amirkabir University of Technology (Teharan Polytechnic), Te hran, Iran
108
108
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NAMIC 2012 - May 30-31
Magnetic materials
55816741212
The Investigation of Effect of Barrium Hexa Ferrite Nano
Particles on the magneic Properties And Bonding Srength of
Nd-Fe-B Hybrid Magnets
Pedram Parsa (1)Mohammad Reza IzadPanah (2)
pedparsa@gmail.com
Abstract :
In the recent study, the feasibility of composing the Nd-Fe-B hybrid magnets was
investigated by two approaches. These magnets are used to compose electrical appliances
such as electrical engines, etc. In the first approach (i.e. solvent base), three different binders
were used as polymer matrix to compose Nd-Fe-B hybrid magnets. In order to solve each
binder, different solvents were used. In the second approach (i.e. melting base) the polymer
was melted and mixed thoroughly with metallic powder, in order to gain a mixture of metallic
powder and the polymer matrix. The resulted product, then, crushed into granules following an
injecting by a Mardoni injection instrument. Eventually, the mechanical and magnetic
properties of the produced samples were investigated. These produced samples, would never
reach their maximum tensile strength, in the room temperature. In the high temperatures, the
effect of material hardness, as a function of applied strain, for the samples containing lower
solid particles and the samples containing higher solid particles, can be affordable after %
strain and
% strain, respectively.
Keywords :
- MSc Student, Shahid Bahonar University of kerman, Kerman
- Assistant Professor, Shahid Bahonar University of kerman, Kerman
109
109
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NAMIC 2012 - May 30-31
Nano materials
56216861212
Effect of important factors on synthesis of prussian blue
nanoparticle
Seyed Ehsan Hoseininasab (1)Amir Heidarinasab (2)Nahid Amiri (3)
ehsan_gb_20@yahoo.com
Abstract :
In this study evaluate sonication time, stirr time and concentration of materials on size
of prussian blue nanoparticles. This study was performed for one reasons, To obtain the
desired size of prussian blue nanoparticles. The size of prussian blue nano particles was
determined by Particle Size Analyzer (ZETA-SIZER, MALVERN Nano-ZS). Prussian
nanoparticles were synthesized by simple chemical method from mixing two solutions,
K [Fe(CN) ] solution was slowly added to FeCl •6H2O and 12.5 mol L-1 H2O2 solution
under vigorous stirring at room temperature. Sonication time and stirring time as the main
affecting factors on the nanoparticle size was investigated. The result showed sonication time
about 4 h and stirring time about 2.5 h, and concentration of materials of 2 mg/ml, the
formation of prussian blue nanoparticles with diameters between 5-50 nm.
Keywords : Prussian blue nanoparticle, sonication, synthesis, stirring
- - Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Faculty of Science, Department of Biology, Alzahra University, Tehran, Iran
110
110
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NAMIC 2012 - May 30-31
Nano materials
56416921224
Phase evolution of hydroxyapatite nanocomposites during
sintering
Mohsen Ebrahimi (1)Touradj Ebadzadeh (2)Esmail Salahi (3)
ebrahimi186@yahoo.com
Abstract :
Decomposition of hydroxyapatit strongly affects its mechanical and biological
properties. The present work was based on Le Chatelier’s principle which dictates that the
presence of water vapour should impede the release of water vapour from hydroxyapatite, and
thus suppresses the decomposition of hydroxyapatite to unhydrated calcium phosphate
phases. After characterizing the first powders using X-ray diffraction technic (XRD) and
scanning electron microscope (SEM), Pure hydroxyapatite, hydroxyapatite wt% alumina
and hydroxyapatite wt% titanium mixtures were pressed and sintered in air, moist, and
reduction atmospheres at
oC for h. In order to study the phase and structural evolution,
XRD was used. Phase investigation of sintered bodies showed that, pure hydroxyapatite is
stable in all three atmospheres at
oC. But, moist and reduction atmospheres were
preferred atmospheres to suppress the hydroxyapatite decomposition in hydroxyapatite alumina and hydroxyapatite –titanium nanocomposites, respectively.
Keywords : Hydroxyapatite, decomposition, Nanocomposite, Atmosphere, Phase transformation
- - - Department of Ceramic, Materials & Energy Rresearch Center (MERC), Karaj, P.O. Box
-
, Iran
111
111
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NAMIC 2012 - May 30-31
Nano materials
56616981225
Heat operation for synthesis of calcinated hydroxyapatite
and loading silver nanoparticles on it
H.R.Ebrahimi (1)M.Khodaie (2)M.Modrek (3)N.Mahru (4)
hebrahimi2010@gmail.com
Abstract :
The bioceramics, calcium hydroxyapatite (HAP), is a material which is biocompatible to
the human body and is well suited to be used in hyperthermia applications for the treatment of
bone cancer. We synthesis hydroxyapatite in modified synthetic body fluid (SBF) solutions at
C and pH of
using novel chemical precipitation technique. Then after heat operation,
on filtered precipitated result HA were produced. For loading the silver nanoparticles (Ag NPs)
on the hydroxyapatite we use AgNO solution. And for reducing Ag+ ions apply sodium
bohrhydrate solution. The formations of the silver nanoparticles on the HAP structure were
confirmed by X-ray diffraction, scanning electron microscopy (SEM), transmission electron
microscopy (TEM). TEM image show the nanostructure of silver particles, being formed on
hydroxyapatite texture.
Keywords : Bioceramics; Calcium Hydroxyapatite; silver nanoparticles; synthetic body fluid
- - - - Department of Chemistry, Majlesi Branch, Islamic Azad University, Isfahan, Iran
112
112
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NAMIC 2012 - May 30-31
Nano materials
5671701224
Evaluation of Bioactivity of PHB/nHA Composite Scaffold for
Bone Tissue Engineering
Abbas Saadat (1)AliAsghar Behnamghader (2)Saeed Karbasi (3)
a.saadat@srbiau.ac.ir
Abstract :
this study is based on the synthesizing hydoxyapatite nanoparticles and the technique
used for this purpose was sol gel. Salt leaching and solvent casting technique was adapted for
the fabrication of Poly
-hydorxybutyrae\Hydorxyapatite nanoparticles. Synthesized
hydroxyapatite nanoparticles, polymer and composite were confirmed by XRD. poly ( hydroxybutyrate) without nHA and with
and
wt % of nHA were prepared. The weight
percent of NaCl was
. According to the Scanning electron microscopy (SEM) results, the
pore size was
μm and interconnectivity, morphology and distribution of pores in
prepared scaffolds were also uniform. The bioactivity of the scaffolds was demonstrated by
immersion in simulated body fluid (SBF) for up to
days. Formation of hydroxyapatite
crystals on the surface of scaffolds was confirmed by SEM and EDXA. This study indicated
that the scaffolds with
wt%HA had the best bioactivity for bone tissue engineering.
Keywords : Bioactivity, Poly -hydroxybutyrate, NanoHydroxyapatite, Scaffold, bone tissue engineering
Department of Materials Engineering, Majlesi Branch, Islamic Azad University, Majlesi New Town Isfahan, Iran
- Biomaterials group, Materials & Energy Research Center, Tehran, Isla mic Republic of Iran, Postal code
-
- Department of Medical Physics and Biomedical enginnering ,school of medicine, Isfahan University of Medical Sciences, Isfahan, Iran
113
113
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NAMIC 2012 - May 30-31
Nano materials
5681704224
Some Aspects of New Advanced High-Mn TWIP steels
G. Dini (1)H. shekari (2)
g.dini@ui.ac.ir
Abstract :
Progressive increase in the research areas related to high manganese TWIP steels
has occurred during the past
years. In this paper, a review of the relations between
microstructure and mechanical properties of TWIP steels is presented mainly focusing on
chemical composition, deformation mechanisms, dislocation structure, work hardening
behavior, flow stress analysis, heat treatment and neural network modeling. This review of
knowledge explains the metallurgical important of TWIP steels as new advanced materials for
industrial applications.
Keywords : TWIP steel, SFE, mechanical twin, work hardening, advanced materials
- Central laboratory, University of Isfahan, Isfahan
-
, Iran
- Department of Materials Engineering, Isfahan University of Technology, Isfahan
-
, Iran
114
114
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NAMIC 2012 - May 30-31
Bio materials
5691707224
DESIGN AND SYNTHESES OF PHOTO-REACTIVE
BIOPOLYMERS
Yoshihiro Ito (1)
y-ito@riken.jp
Abstract :
Various types of photo-reactive or photo-responsive biopolymers have been developed
for chemical and medical applications ( - ). Here we will demonstrate some photo-reactive
biopolymers for medical applications. One is UV-reactive biopolymers including hyaluronic
acid, gelatin, chitosan, and nonbiofouling polymer. Another is visible light-reactive polymer
systems. The former was utilized for surface micropatterning for cell culture or preparation of a
protein-microarray chip. The latter was for bio-sealants.
Keywords : Biopolymer
- Nano Medical Engineering Laboratory, RIKEN Advanced Science Institute, - Hirosawa, Wako-shi, Saitama
-
, JAPAN
115
115
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NAMIC 2012 - May 30-31
New materials
5701710224
A Comparison between UV Protection Factor of Fabrics
composed of Aluminum and Copper
S. M. Eslami Tabaei (1)M. Ghane (2)
Abstract :
Radiation is energy emission in electromagnetic waves such as, Gamma, ultraviolet,
visible, infrared or corpuscle. People are surrounded by things always emitting and absorbing
radiative energy at the same time. The past decade has witnessed an alarming increase in the
incidence of skin cancer worldwide because of ultraviolet radiation. Therefore protective
textiles against ultraviolet radiation seem essential. This paper purpose is to compare the
effect of Aluminum to that of Copper on UV protection factor. Using Cotton-Polyester and
Nylon as warps and Aluminum, Copper, Cotton-Polyester and Nylon as wefts, six sample
fabrics were woven and coded as Cotton-Polyester, Nylon , Cotton- Aluminum, CottonCopper, Nylon-Aluminum and Nylon-Copper. F
and Smith were two machines with which
samples were woven. Warp and weft density of fabrics were considered constant so that the
effect of metal in fabrics structure could be investigated better. Cotton-Polyester and Nylon
fabrics were considered as main samples to which other fabrics composed of metal were
compared. In other word, Nylon-Aluminum alongside Nylon-Copper and Cotton-Aluminum
alongside Cotton-Copper were compared to Nylon
and Cotton-Polyester, respectively.
Appling two ANOVA and DUNCAN in SPSS statistical software, the level of comparison
significance was determined. Regarding the fact that Copper emissivity coefficient is higher
than that of Aluminum, results were supposed to indicate more amount of electromagnetic
waves absorption in all Copper samples in comparison to Aluminum ones. However,
experimental results showed that Copper had no significant effect on ultraviolet protection
factor of woven fabrics composed of Cotton-Polyester. By contrast, for Nylon , applying
Aluminum metal didn’t cause any significant influence on improving ultraviolet protection
factor. Mentioned results could be attributed to different cover factors of woven samples. As
results showed, Nylon
fabrics with Copper metal as their wefts accounted for better
ultraviolet protection.
Keywords : Radiation, Radiative energy, Spectroscopy, Emission, Emissivity coefficient
- Master of Science student at Textile Engineering Faculty Isfahan University of Technology
- Associate Professor at Textile Engineering Faculty Isfahan University of Technology
116
116
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NAMIC 2012 - May 30-31
Nano materials
5711713224
Electroplating of Sol-Enhanced Black Ni Composite Coatings
Marzieh Sharifi (1)Wei Gao (2)
w.gao@auckland.ac.nz
Abstract :
Black Ni coatings possess both very high radiation energy absorption capability and
good corrosion resistance, and are highly desirable for applications in such as solar thermal
energy conversion systems and sea water desalination plants. We have developed a new
technique based on industrial electroplating to produce ultra-black Ni based coatings with
nano-composite structure. This technique uses electroplating method to produce black Ni
nano metal-oxide composite coatings on brass substrate with a bright Ni top layer. TiO and
ZrO sol solutions were added to the electroplating solution to form black Ni/TiO and black
Ni/ZrO composite coatings. The coating properties including hardness and scratch resistance
have been improved in comparison with the conventional black Ni coating. Nano-indentation
tests and microstructure studies have also been conducted to explain the strengthening
mechanisms.
Keywords : Black Ni coating, nano-structured composite coating, hardness, scratch resistance
- PhD Candidate, Department of Chemical & Materials Engineering, the University of Auckland, PB
- Professor, Department of Chemical & Materials Engineering, the University of Auckland, PB
, Auckland
, Auckland
, New Zealand
, New Zealand
117
117
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NAMIC 2012 - May 30-31
New materials
5771731224
The role of silicon carbide particles in stabilizing aluminum
foam in batch type gas injection foaming process
M. Malekjafarian (1)M. S. Abravi (2)M. Golestanipour (3)A. R. Sadeghi (4)
S.K. Sadrnezhaad (5)
malekjafariyan@gmail.com
Abstract :
Composite aluminum foams reinforced with SiC particles were manufactured by
injecting gas into the liquid. Microstructure and mechanical behavior of the Al/SiCp foam were
investigated by scanning electron microscopy and compression test. The results show that the
both cell size and wall thicknesses augmented with increasing SiCP content while the Plateau
border size decreased. With greater SiCp content, plateau stress was larger but maximum
plateau strain was lower. The stress-strain curve exhibited serrations in the plateau region.
Keywords : aluminum; foams; particulate reinforced composites; melt spinning; compression test
- - - - Materials Research Group, Iranian Academic Center for Education, Culture and Research (ACECR), Mashhad Branch, P.O. Box
, Azadi Square, Mashhad, Iran
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., PO Box
-
, Tehran, Iran
118
118
st
NAMIC 2012 - May 30-31
Bio materials
5781734224
The effect of adding bioactive glass on the fluoride release of
resin-modified glass-ionomer cement in simulated body fluid
Jhamak Nourmohammadi (1)Shokufeh Teimory (2)S.K. Sadrnezhaad (3)
jhamak_n@yahoo.com
Abstract :
Glass ionomer cements (GICs) originally designed for use as dental materials have a
number of advantages over acrylic bone cements. These include non-exothermic setting
reaction with no thermal damage to surrounding tissues, minimal shrinkage during gelation,
the possibility of incorporation drugs and growth factors within the cement and the ability to
release fluoride. It is already known that fluoride increase trabecular bone density and it is
used in the treatment of osteoporosis to inhibit bone resorbtion. However, fluoride release
process is complex and affected by variables related to the cement formulation, manipulation,
the mixing process and elution medium. This study was made to examine the change of the
cement powder composition on the fluoride release profile in simulated body fluid for clinical
efficacy in respect of orthopedic surgery. Therefore, the effects of adding different content of
bioactive glass to the new cured cement on elution of fluoride and its kinetic were investigated.
Keywords : Resin-modified glass-ionomer cement; Bioactive glass; Simulated body fluids; Apatite, Osseo- Biomaterials Department, Materials and Energy Research Center,Karaj, Iran
- Biomaterials Department, Islamic Azad University,Olum Tahghighat Barnch,Tehran, Iran
- Material Science Department, Sharif University, Tehran, Iran
119
119
st
NAMIC 2012 - May 30-31
New materials
5791737224
Self-Propagating High-Temperature Synthesis of Porous
Molybdenum Disilicide Composites
M. Malekjafarian (1)E. Zahabi (2)S.K. Sadrnezhaad (3)
malekjafariyan@gmail.com
Abstract :
Microwave processing combined with combustion synthesis was used to fabricate
intermetallic composite foam. Internal microwave heating initiated ignition at center of the
sample and combustion wave front propagated radially outwards. Open-cell porous MoSi
intermetallics with adjustable pore characteristics were successfully produced from MoO ,
SiO , Mg and C raw materials. Manipulating volume fraction and particle size of the utilized
carbon, porosity and pore size of MoSi intermetallics were easily controlled. Their values
were in the ranges of - % and
mm, respectively. From thermodynamic analyses of
MoO –xMg–yC system, optimal ranges of x and y coefficients were so found to ensure
complete reduction of MoO3 to metallic molybdenum. The influence of x and y values on the
process parameters like temperature, front propagation velocity, phase composition and the
structure of products were experimentally investigated.
Keywords : Metal Foam; Composite materials; SHS process; Molybdenum Disilicide
- - Materials Research Group, Iranian Academic Center for Education, Culture and Research (ACECR), Mashhad Branch, P.O. Box
, Azadi Square, Mashhad, Iran
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., PO Box
-
, Tehran, Iran
120
120
st
NAMIC 2012 - May 30-31
New materials
5801740224
PHYSICAL - CHEMICAL AND THERMODYNAMIC
PROPERTIES OF ALUMINUM ALLOYS-NEODYMIUM
M.B Razazi (1)R.N.Amini (2)B.B Ishov (3)A.B Badalov (4)
Abstract :
The enthalpy of dissolution of alloys and intermetallics of the Аℓ-Nd systems with the
method of calorimetrical solution has been determined. Enthalpy of formation by
thermochemical cycle of intermetallic compounds and patterns of their changes depending on
the composition has been calculated. The melting point of intermetallic systems by specified
Semiempirical method has been defined. Installed symbaticall dimension law in the changes
of melting temperature and enthalpy of formation of IM with maximum stability in the
composition of Аℓ2-Nd is determined.
Keywords : Alloy, Intermetallic, Aluminium , Lanthanides, Heat of solution, Enthalpy of formation
- Department of Materials Science and Engineering , Majlesi Branch, Islamic Azad University, Isfahan, Iran
- Institute of Chemistry. V.I. Nikitin Tajikistan Academy of Sciences
- Tajik Technical University, M.S. Osimi, Dushanbe, Tajikistan
121
121
st
NAMIC 2012 - May 30-31
Semi conductors
5811743224
Semiconductor nanoscrystals as novel optical materials
S.V. Gaponenko (1)
s.gaponenko@ifanbel.bas-net.by
Abstract :
The paper summarizes basic propertis and potential applications of semiconductor
nanocrystals viewed as novel optical materials. Basic properties include size-dependent
absorption and emission spectra, broad size-dependent luminescence excitation spectra,
strong nonliner optical response, high photostability, electro-optical effect and feasibility to
make solid samples, thin films, solutions and even bioconjugates. Applications include optical
filters, nonlinear laser filters/shutters and Q-switches, electro-optical modulators, swithces,
display components, fluorescent labels in biospectroscopy. Favorable features of
semiconductor nanocrystals are highlighted.
Keywords : nanocrystals, quantum dots, lasers, luminophores, electro-optics, lab-on-chip, bioconjugates
- B.I.Stepanov Institute of Physics, Minsk, Belarus
122
122
st
NAMIC 2012 - May 30-31
583174923
Metal foam sandwich composites: Contact damage, residual
bending strength and energy absorption
Maizlinda I. Idris (1)Tania Vodenitcharova (2)Mark Hoffman (3)
mark.hoffman@unsw.edu.au
Abstract :
Structural components made of metal foam sandwich composites can be locally
damaged during handling or in impact accidents. It is imperative for their design to account for
the response of the sandwich composites to local damage of varying sizes, and to estimate
their residual strength under operating loading conditions. This paper presents an
experimental study of the deformation and failure mechanisms of sandwich composites made
of closed-cell aluminium foam core (ALPORAS) and carbon fiber skins. The composites are
first subjected to quasi-static indentations with spherical indenters of various diameters and
then loaded in quasi-static four-point bending until failure. The failure modes in both loading
cases were analysed, and the residual compressive and tensile strength in bending was
determined along with their dependence on the induced damage.
Keywords :
- - - School of Materials Science and Engineering, University of New South Wales Sydney, NSW
Excellence for Design in Light Metals
- Faculty of Mechanical and Manufacturing Engineering, University of Tun Hussein Onn Malaysia,
Malaysia
, Australia, and the ARC Centre for
Parit Raja Batu Pahat Johor,
123
123
st
NAMIC 2012 - May 30-31
584175231
Modification of light-matter interaction in nanostructures:
From basic physics towards applications
S.V. Gaponenko (1)
s.gaponenko@ifanbel.bas-net.by
Abstract :
The paper summarizes the state-of-the-art and potential application of modified light—
matter interaction in metal-dielectric nanostructures. Local incident field enhancement and
density of states enhancement makes feasible Raman scattering increase by many orders of
the magnitude and fluorescence intensity rise up by 1-2 orders of the magnitude. The effects
can be used in routine analytical practice. In case of Raman spectroscopy, enhanced
response offers a possibility to use simple and cheap devices up to primitive filter based
instruments for specific tasks. In case of luminescence enhancement not only analytical
techniques can be improved, e.g. in medicine but also light emitting devices can be developed
with spectral converters based on plasmonic effects.
Keywords : plasmonics, Raman spectroscopy, fluorescence
- Stepanov Institute of Physics, National Academy of Sciences of Belarus, Nezalezhnasti Ave
, Minsk
Belarus
124
124
st
NAMIC 2012 - May 30-31
Nano materials
83249729
Toughening of PA /HDPE/SEBS-g-MA/Clay nanocomposite
M. Attari (1)A. Arefazar (2)Gh. R. Bakhshandeh (3)
marzieh.attari@gmail.com
Abstract :
Preparation and morphology of PA / high density polyethylene (HDPE)/ SEBS-g-MA /
Modified clay nanocomposites were studied. Mixing was performed using melt processing in
an Extruder Co rotating Twin Screw. After etching the materials with boiling Toluene and THF
at room temperature, the morphology was examined by scanning electron microscopy (SEM)
analyses. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to
evaluate the effects of the Organo-Clay addition on the structure of nanocomposites. XRD
traces showed that the characteristic (
) peak of the nanocomposites shifted to the lower
angle region. XRD and TEM results showed simultaneous existence exfoliated and
intercalated structures in produced nanocomposites. The tensile properties and impact
strength of these toughened nanocomposites are discussed in terms of the MMT and SEBS-gMA contents and morphology. Adding of nanoclay enhanced and improved the stiffness
properties of produced nanocomposites but reduced their toughness properties. Adding of
SEBS-g-MA reduced stiffness properties but increased toughness properties. In this project,
we gain access a best, optimum composition which there is a clear trade-off between stiffness
versus toughness.
Keywords : Campatibilizer, Morphology, PA , HDPE, Toughening
- Polymer Engineering Department, Islamic Azad University south of Tehran branch, Tehran, Iran
- Polymer Engineering Department, Amirkabir University of Technology, Tehran, Iran
- Rubber Processing and Engineering Department, Iran Polymer & Petrochemical Institute, Tehran, Iran
125
125
st
NAMIC 2012 - May 30-31
New materials
85255730
Investigation on The Effect of Viscoelasticity on Natural
Frequency in Cylindrical Sandwich Using FEM
M.shariyat (1)S.M.M.Shakib (2)A.R.N.Oskouie (3)A.H.R.Mazyak (4)
M.R.Mohammadi (5)
shariyat@kntu.ac.ir
Abstract :
Sandwich panels are present in many engineering structures specifically where the
high ratio of strength to the weight is recommended. Application of sandwich panels with
viscoelastic core with high damping properties will tend to better flexural strength and dynamic
behaviors and sound insolation. The main aspect of present text is sensitivity analysis of
natural frequencies of cylindrical sandwich panels about changing viscoelastic properties.
Modeling and FEM analysis and proceeding data gathering were accomplished using
ABAQUS/CAE (R). Acquired results have been verified by comparison with governing theory
of sandwich shells and plates and errors between different theories and FEM has been
identified. In this paper, effect of viscoelastic properties and composite lay-up and boundary
condition has been brought into account.
Keywords : Viscoelastic, Composite, Cylindrical Sandwich Panel, FEM
- K.N. Toosi University of Technology, Faculty of Mech. Eng., Pardis Street, Molasadra Avenue, Vanak Square, Tehran, Iran
- - - - Imam Hossein University, Faculty of AeroSpace.Eng. , Hakimiyeh, Tehran. Iran
126
126
st
NAMIC 2012 - May 30-31
Bio materials
9227685
Tribology Evaluation of Jatropha as an Environmental
Friendly Lubricant
I. Golshokouh (1)S. Syahrullail (2)F.N. Ani (3)
giman2@live.utm.my
Abstract :
The main source for lubricant oils are mineral oil, but the source for mineral oils are
getting lower from day to day and it is a major source for environmental pollution in the world.
This research is a comparative study of friction, wear and viscosity was carried out on
Jatropha oil and hydraulic oil-based commercial lubricating oil. Wear and friction were
measured with four balls Tribotester and CCD camera according to the American Society for
Testing and Materials (ASTM) standard. Results show that Jatropha oil has better condition in
friction and wear instead of hydraulic oil with base lubricant.
Keywords : Jatropha oil, Friction, Wear, Four balls tester, Lubricant
- Member of faculty, Department of Thermofluids, Faculty of Mechanical Engineering, University Technology Malaysia, Johor D.T., Malaysia
and Islamic Azad University, Iezhe, Iran
- - Department of Thermofluids, Faculty of Mechanical Engineering, University Technology Malaysia, Johor D.T., Malaysia and Islamic Azad
University, Iezhe, Iran
127
127
st
NAMIC 2012 - May 30-31
Bio materials
9829485
Micromechanical study of green wood subjected to mode I
fracture
A. Sedaghat (1)M. Soleymani (2)M. Talachian (3)
alireza_sedaghat.liau.ac.ir
Abstract :
The importance of environmental effects on the structural performance of wood has
been known for ages, moisture being the most pronounced degradative effect that needs to be
taken into account at different levels of wooden structure durability. Moisture content has an
effect on many mechanical and physical properties below the fiber saturation point. The
results presented herein focus on the chracterisation of fracture mechanisms and properties of
softwoods and hardwoods at the highest moisture content around the fiber saturation point,
where wood can be regarded as a poroelastic fluid-saturated media. Small wooden specimens
were subjected to opening fracture mode I loading with the wedge-splitting loading stage
which allows for in-situ real-time ESEM investigations. Fracture responses are reported for
four different wood species tested ex situ, and fracture parameters such as total fracture
energy are discussed related to two fracture directions RL and RT. It is concluded that microstudy provides valuable evidence on the change of fracture mechanism with wood species
and fracture orientation.
Keywords : Wood, Fracture, ESEM, Moisture, Poroelasticity, Fluid-saturated media, Crack
- - - Engineering Group, Material Engineering Department, Tarbiat Modarres University, Tehran, Iran
128
128
NAMIC 2012
Farsi Papers
131
st
NAMIC 2012 - May 30-31
Farsi3079211011
Mo(Si,Al)
)4( ُ‫)هحوذرضا حسي زاد‬3( ُ‫)هسعَد علیساد‬2( ‫)سیذ علی طیبی فرد‬1( ‫حسیي فصیحی دستجردی‬
ceramicmahe@ gmail.com
: ُ‫چكیذ‬
Mo(Si
SHS
Al
)
XRD‌
SHS
PSA (Particle Size Analyzer
- wt
d
Mo(Si,Al)
wt ‌/
‌=
ºC
‌μm
wt
wt
SHS
Mo(Si,Al)
-
131
-
-
-
- - - -
132
st
NAMIC 2012 - May 30-31
Nano materials
Farsi35710711117
LLDPE/nanoTiO
)4( ‫)هحوذ ابراّین بحرالعلَم‬3( ‫)جَاد هرادللی‬2( ‫)حویذُ بصیری‬1( ‫ًذا سرحذی‬
)5( ‫هحوذ حسیي شیخی‬
sarhadi_n@ yahoo.com
: ُ‫چكیذ‬
TiO
LLDPE/nanoTiO
TiO
TiO
-
132
-
-
-
-
- - -
-
-
-
-
-
-
-
-
-
-
-
-
133
st
NAMIC 2012 - May 30-31
New materials
Farsi36711011121
)3( ‫)سیاهك باسمی‬2( ‫)سیذ رضا غفارياى‬1( ‫اهیر بابايی‬
a.babaei@ aut.ac.ir
: ُ‫چكیذ‬
film stacking
powder impregnation
clay
HDPE-g-MA
LLDPE-g-MA
clay
exfoliated
- - -
133
134
st
NAMIC 2012 - May 30-31
Nano materials
Farsi4761428126
WC-Co
)3( ‫)رضا غالهی پَر‬2( َ‫)حبیب ايٌاًل‬1( ‫ًیوا خادهیاى‬
nkhademian@ gmail.com
: ُ‫چكیذ‬
WC-
Co-
Functionally Graded Hard Metals
TiC
xTiC-yTiN(x=
‌ y=
Controlled atmosphere furnace
EDS
SEM
Vickers Micro hardness
-
134
135
st
NAMIC 2012 - May 30-31
New materials
Farsi4781434126
)3( ‫)سیذ هجتبی زبرجذ‬2( ‫)جلیل ٍحذتی خاکی‬1( ‫حسیي حسیٌخاًی‬
ho_ho931@ stu_mail.um.ac.ir
: ُ‫چكیذ‬
h
AAS
SEM
TGA
XRD
A
- - -
135
136
st
NAMIC 2012 - May 30-31
Nano materials
Fe
Farsi4831449127
Co
)3( ُ‫)حكوت رضَی زاد‬2( ‫)حویذ رضا صوین‬1( ‫علی هْرالحسیٌی‬
ali_mehr_k@ yahoo.com
: ُ‫چكیذ‬
Fe
Co
Fe
Fe
Co
)
Cu
Co
Fe Co
XRD
VSM
Fe
SEM
Co
-
136
137
st
NAMIC 2012 - May 30-31
Nano materials
Farsi4871461127
)2( ‫)احوذ هٌشی‬1( ‫يلذا کريوی‬
y.karimi@ ma.iut.ac.ir
: ُ‫چكیذ‬
pH
-
137
138
st
NAMIC 2012 - May 30-31
Semi conductors
Farsi4901470128
LaFeO
)4( ‫)سعیذ باغشاّی‬3( ‫)کاٍُ ارزاًی‬2( ‫)هرتضی تویسی فر‬1( ‫زّرا درخشی‬
zahra_derakhshi@ yahoo.com
: ُ‫چكیذ‬
LaFeO
LaFeO
PVA
Sherescan
Line Scan
SEM/EDX
Line Scan
p
- -
138
139
st
NAMIC 2012 - May 30-31
Nano materials
Farsi4931479128
)3( ‫)هحسي حاجی پَر‬2( ‫)هحوذ حاللی‬1( ‫آرهیي ٍحیذ هحوذی‬
arminvm@ gmail.com
: ُ‫چكیذ‬
ELM-GC
C
XRD
DLS FE-SEM
- -
139
140
st
NAMIC 2012 - May 30-31
Nano materials
Farsi4941482129
B C
ZrB -SiC
)3( ‫)هحبَبِ شاهبَلی‬2( ‫)هْری هشْذی‬1( َ‫علی رزهج‬
razmjoo_a@ yahoo.com
: ُ‫چكیذ‬
C
SiC
ZrB
ZrB
SiC-ZrB
B C
ºC
SiC
B C
SiC
XRD SEM
MPam
‌‌
B C
B C
B C
-
140
141
st
NAMIC 2012 - May 30-31
Nano materials
Farsi4951485129
AZ
)4( ‫)هصطفی هختاری‬3( ‫)هحوذ اسذی‬2( ‫)سیذ فرشیذ کاشاًی بسرگ‬1( ‫رٍزبِ ًصیری‬
roozbehnassiri@ yahoo.com
: ُ‫چكیذ‬
AZ
Si N
AZ
-
141
142
st
NAMIC 2012 - May 30-31
New materials
Farsi4961488129
Mn+Fe O
)2( ‫)حسیي اسواعیلی‬1( ‫سیذ علی طیبی فرد‬
a-tayebi@ merc.ac.ir
: ُ‫چكیذ‬
Fe O
Mn
oC
oC
XRD
quench
MnFe O
MnFe O
- -
142
143
st
NAMIC 2012 - May 30-31
Farsi4981494129
)3( ‫)هحوَد خسرٍی‬2( ‫)جعفر اسكٌذری جن‬1( ُ‫هْرداد جبارزاد‬
jabbarzadeh@ mshdiau.ac.ir
: ُ‫چكیذ‬
- -
143
144
st
NAMIC 2012 - May 30-31
Farsi4991497129
MgAl O -Ti(C,N
)3( ‫)حویذرضا رضايی‬2( ُ‫)رحین ًمی‮زاد‬1( ‫الِْ خَش اهیذ‬
e.khoshomid@ yahoo.com
: ُ‫چكیذ‬
MgAl O -Ti(C,N
X
TiO
-
144
145
st
NAMIC 2012 - May 30-31
Nano materials
Farsi5021506129
)3( ‫)علی خاًلرخاًی‬2( ‫)هحوذ رضا ٍاعظی‬1( ‫حویرا جوالی‬
hom_jamali@ yahoo.com
: ُ‫چكیذ‬
TMOS
C
AEM/TMOS
SEM
-
AEM
TMOS
FT-IR
AFM
- - -
145
146
st
NAMIC 2012 - May 30-31
New materials
Farsi5061518129
)3( ‫)سیذ اسواعیل شكیب‬2( ‫)هرتضی زًذ رحیوی‬1( ‫اهیر گلستاًی‬
Amir _glstn@ yahoo.com
: ُ‫چكیذ‬
Tvɷ
SEM
TMAZ
- -
146
147
st
NAMIC 2012 - May 30-31
Nano materials
Farsi50915271210
)4( ‫)علی ًعوتی‬3( ‫)سعیذ باغشاّی‬2( ‫)ابراّین لاسوی‬1( ‫تْویٌِ گیَُکی‬
tahminegiveki@ yahoo.com
: ُ‫چكیذ‬
C
Turbidimetry
DLS
-
147
-
148
st
NAMIC 2012 - May 30-31
Nano materials
Farsi51215361210
-
)4( ‫)سعیذ باغشاّی‬3( ُ‫)رحین ًمی زاد‬2( ‫)کاٍُ اَرزاًی‬1( ‫هرضیِ پذراى‬
)5( ‫هحوذ اسذی‬
marzieh_pedaran@ yahoo.com
: ُ‫چكیذ‬
FCC
MgAl O
C
cm ×
SEM
XRD
TiO
TiO
C
C
Al ( -x)Mg Ti +xO
-
–
-
-
148
-
149
st
NAMIC 2012 - May 30-31
Nano materials
Farsi51615481210
ZnO
)3( ‫)ياشار عسيسياى کالًذرق‬2( ‫)علی شاهل‬1( ‫هعصَهِ ًاصری‬
miss.naseri@ gmail.com
: ُ‫چكیذ‬
XRD
SEM
FTIR
UV-VIS
- -
149
150
st
NAMIC 2012 - May 30-31
Nano materials
Farsi51915571210
Al/B C
)3( ‫)حسیي ادريس‬2( ‫)هرتضی شوعاًیاى اصفْاًی‬1( ِ‫علیرضا هرادی فرادًب‬
a.moradifaradonbeh@ ma.iut.ac.ir
: ُ‫چكیذ‬
B C
ARB
mm/min
rpm
SEM
mm/min
mm/min
-
150
151
st
NAMIC 2012 - May 30-31
Nano materials
Farsi52215661210
)4( ‫)هحوذرضا جلیلیاى ًصرتی‬3( ‫)هیٌا غالهی کفترٍدی‬2( ‫)فرّاد اسوعیلی لذسی‬1( ‫جوال هظلَم‬
mazloom81@ gmail.com
: ُ‫چكیذ‬
AFM
UV-Visible
-
XRD
- - -
151
152
st
NAMIC 2012 - May 30-31
Bio materials
Farsi52315691210
)2( ‫)سعیذ ًَری خراساًی‬1( ‫ًرگس هظاّری‬
n_mazahery@ yahoo.com
: ُ‫چكیذ‬
PGS
PGS
PGS
-
152
153
st
NAMIC 2012 - May 30-31
New materials
Farsi52615781210
-
)2( ُ‫)هصطفی علیساد‬1( ‫سیذُ زّرا حسیٌی‬
s.zhosseini65@ gmail.com
: ُ‫چكیذ‬
Al-Fe
-
153
154
st
NAMIC 2012 - May 30-31
New materials
Farsi52815841210
TiO -Al-C
Al O -TiC
)3( ‫)رحوت اهلل عوادی‬2( ‫)حسیي ادريس‬1( ‫اصغر ًیوجردی‬
asghar.nimjerdy@ gmail.com
: ُ‫چكیذ‬
Al O -TiC
SHS
TiO -Al-C
Al O -TiC
-
154
- - -
155
st
NAMIC 2012 - May 30-31
Nano materials
Farsi53616081210
)3( ‫)الِْ حسي زادُ پاريسی‬2( ‫)ساراالسادات حسیٌی فارق‬1( ‫هرتضی زًذ رحیوی‬
M orteza.Zandrahimi@ gmail.C om
: ُ‫چكیذ‬
CuZn
Al
mm
Routomed
β α
EDX
α_β
- -
155
156
st
NAMIC 2012 - May 30-31
New materials
Farsi54016201210
)2( ‫)حویذ رحیوی‬1( ‫جعفر رضاًیا‬
H .R ahimi@ ippi.ac.ir
: ُ‫چكیذ‬
DMTA
-
156
- -
157
st
NAMIC 2012 - May 30-31
Nano materials
Farsi54116231210
)3( ‫)هحوَد آل شوس‬2( ‫)هسعَد جباری‬1( ‫غالهرضا لذر‬
rezaghadar_00@ yahoo.com
: ُ‫چكیذ‬
TM TE
GaAs
-
157
158
st
NAMIC 2012 - May 30-31
Bio materials
Farsi54316291211
-
)2( ‫)هحوذ حسیي فتحی‬1( ‫پارسا رضَاًیاى‬
P arsa.R ezvanian@ gmail.com
: ُ‫چكیذ‬
-
-
158
- -
159
st
NAMIC 2012 - May 30-31
Nano materials
Fe
Farsi54416321211
-Co
)
-xSix
)2( ‫)شْريار شرفی‬1( ‫هرين يَسفی‬
yousefim63@ yahoo.com
: ُ‫چكیذ‬
Fe
-Co
-
Fe
Fe
-Co
-Co
-
-
159
160
st
NAMIC 2012 - May 30-31
Nano materials
Farsi55016501211
)4( ‫)اکبر خذاپرست حمی‬3( ‫)ٍحیذ هتمی طلب‬2( ‫)فاطوِ حك دٍست‬1( ‫فاطوِ هحترم‬
fatememohtaram@ yahoo.com
: ُ‫چكیذ‬
-
s/m
-
- -
160
161
st
NAMIC 2012 - May 30-31
Smart materials
Farsi55116531211
)4( ‫)اکبر خذاپرست حمی‬3( ‫)ٍحیذ هتمی طلب‬2( ‫)فاطوِ هحترم‬1( ‫فاطوِ حك دٍست‬
fatemeh_haghdoost@ yahoo.com
: ُ‫چكیذ‬
four-probe
-
s/m
SEM
- -
161
162
st
NAMIC 2012 - May 30-31
New materials
Farsi55216561211
-
)2( ُ‫)هصطفی علیساد‬1( ‫هیالد طالبیاى‬
talebian.milad@ gmail.com
: ُ‫چكیذ‬
–
-
162
163
st
NAMIC 2012 - May 30-31
Nano materials
Farsi55416621211
)2( ُ‫)هحوذرضا ايسدپٌا‬1( ‫پذرام پارسا‬
pedparsa@ gmail.com
: ُ‫چكیذ‬
Nd-Fe-B
Nd-Fe-B
-
163
164
st
NAMIC 2012 - May 30-31
Farsi55616681212
C-SiC
)4( ‫)يَسف صفايی ًائیٌی‬3( ُ‫)اصغر کاظن زاد‬2( ‫)رحین يسداًی راد‬1( ‫سعیذ صافی‬
S afaei@ metaleng.iust.ac.ir
: ُ‫چكیذ‬
C-SiC
MCMB-SiC
MCMB-SiC
Si
C-SiC
- -
164
165
st
NAMIC 2012 - May 30-31
New materials
Farsi56016801212
NaOH KOH
)4( ‫)سلواى الیاسی‬3( ‫)حبیب اهلل بیات‬2( ‫)ّرهس اسالهی‬1( ‫آرهاى هرفع‬
eslamih@ aut.ac.ir
: ُ‫چكیذ‬
–
-
-
-
165
-
166
st
NAMIC 2012 - May 30-31
New materials
Farsi5751725224
)2( ‫)سیذ خطیباالسالم صذرًژاد‬1( ُ‫پريسا ٍحذت خَا‬
parisa.vahdatkhah@ gmail.com
: ُ‫چكیذ‬
ITO
ITO
FE-SEM
-
166
167
st
NAMIC 2012 - May 30-31
Nano materials
Farsi5821746227
NiTi
)3( ‫)سیذ علیرضا حسیٌی‬2( ‫)سیذ خطیب االسالم صذرًژاد‬1( ‫شْريار اکبری ًیا‬
shahryarakbarinia@ yahoo.com
: ُ‫چكیذ‬
NiTi
NiTi
NiTi
NiTi
Ti Ni Ni Ti
167

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