eng
Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)
Advanced Ceramics Progress
2423-7477
2423-7485
2016-08-01
2
3
1
4
10.30501/acp.2016.70024
70024
Cyclic Voltammetry Investigation of the Mechanism of CuInSe2 and CuIn(Al)Se2 Electrodeposition from Aqueous Solution
Yadolah Ganjkhanlou
yadolah1@gmail.com
1
Touraj Ebadzadeh
t-ebadzadeh@merc.ac.ir
2
Mahmood Kazemzad Asiabi
m-kazemzad@merc.ac.ir
3
Amir Maghsoudi
4
Mansoor Kianpour Rad
kianpour.rad@gmail.com
5
Dept. of Energy, Materials and Energy Research Centre
Ceramic , Merc
Dept. of Energy, Materials and Energy Research Centre
Dept. of ceramic, Materials and Energy Research Centre
Energy & Power Engineering, MERC
Electrodeposition of CuInSe2 (CIS) and CuInAlSe2 (CIAS) from aqueous solution has been systematically investigated by cyclic voltammetery implementing different scan rates. It has been shown that electrodeposited CIS and CIAS have been formed on the substrate through electrochemical-chemical interaction of reduces species on the substrate. From the obtained results, it could be inferred that Induced electrodeposition is the main mechanism of incorporation of aluminium and indium in the deposited layer. Effect of electrodeposition potential on the composition of the prepared film has also been investigated and it was observed that in potential close to -0.7 V stoichiometery close to desired stoichiometery of CIAS solar cells could be obtained.
https://www.acerp.ir/article_70024_5ad7b1a39eba726f1a38f279fb3ae295.pdf
Cyclic Voltammetry
Scan Rate
Elecrodeposition
CuInAlSe2
Mechanism
eng
Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)
Advanced Ceramics Progress
2423-7477
2423-7485
2016-08-01
2
3
5
11
10.30501/acp.2016.70030
70030
In Vitro behavior of mechanically activated nanosized Si-Mg-doped fluorapatite
Tahmineh Ahmadi
tahmadi56@yahoo.com
1
A. Monshi
a-monshi@cc.iut.ac.ir
2
Vajihosadat Mortazavi
v_mortazavi@dnt.mui.ac.ir
3
M. H. Fathi
fathi@cc.iut.ac.ir
4
Batool Hashemibeni
hashemibeni@med.mui.ac.ir
5
Ali Akbar Sharifnabi
sharifnabi@yahoo.com
6
Material, Isfahan University of Technology
Biomaterials Research Group, Department of Materia, Isfahan University of Technology, Isfahan, 8415683
Torabinejad Dental Research Center, Department of, School of Dentistry, Isfahan University of Medical
Biomaterials Research Group, Department of Materia, isfahan university of technology
Department of Anatomical Sciences and Molecular Bi, Isfahan University of Medical Sciences, Isfahan 81
Biomaterials group, Department of Metallurgy and M, Iran University of Science and Technology, Tehran,
Hydroxyapatite (HA) is perhaps the most attractive material for bone repair, replacement and regeneration, due to its chemical composition and crystallographic structure which are similar to those of natural bone mineral. However, replacement of various elements and compounds in HA, could improve biological properties of this material. The aim of this study was preparation, characterization and bioactivity evaluation of silicon and magnesium co-doped fluorapatite (Si-Mg-FA). Structural characterizations of synthesized powder were performed using X-ray diffraction (XRD) analysis; Fourier transformed infrared spectroscopy (FTIR) and transmission electron microscopy (TEM) techniques. In vitro bioactivity was evaluated in simulated body fluid (SBF) at 37˚C for up to 28 days. Cell viability and cell attachment were studied by MTT assay and scanning electron microscopy (SEM). The results showed that nanosized (~40nm) single-phase Si-Mg-FA powder was synthesized after 12 h of ball milling. In vitro examinations revealed the amount of bone-like apatite precipitated on Si-Mg-FA nanopowder was significantly higher than FA. The cell culture medium containing Si-Mg-FA showed more cell proliferation and cell viability than FA. It could be concluded that doping Si and Mg into FA improves the bioactivity and cell viability, therefore, has a good potential to be used as bone substitution material.
https://www.acerp.ir/article_70030_a2f360c6b763da1382f53447be3b9cf6.pdf
Mechanical activation
Si
Mg
doped fluorapatite
Nanostructured materials
In
Vitro Biocompatibility
Biomedical applications
eng
Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)
Advanced Ceramics Progress
2423-7477
2423-7485
2016-08-01
2
3
12
16
10.30501/acp.2016.70025
70025
Effect of milling time on the crystallite size and microstructure of Al2O3/Mo Nano composite
Ali Mortazavi
alimti@yahoo.com
1
Mansour Razavi
m-razavi@merc.ac.ir
2
Touraj Ebadzadeh
t-ebadzadeh@merc.ac.ir
3
Ali Sedaghat Ahangari Hossein Zadeh
a.sedaghat@merc.ac.ir
4
MERC, MERC
Ceramic Division, MERC
Ceramic , Merc
MERC, MERC
In this paper, the production of Al2O3-Mo nano-composites via mechanical milling was investigated. Molybdenum and alumina powders with certain ratios were grounded in a planetary ball mill at different times. XRD technique was used to determine the crystallite size of the milled powders. The microstructure of milled powders was studied using optical and electron microscopes. The crystallite sizes of milled powders were in nano-meter scale and increasing the milling time led to decreasing of crystallite size. Microstructural investigations showed uniform distribution of ultrafine second phase in matrix.
https://www.acerp.ir/article_70025_9f3829afc35e8381dd721fbab5f756c1.pdf
Nano
Composite
Alumina matrix
Microstructure
eng
Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)
Advanced Ceramics Progress
2423-7477
2423-7485
2016-08-01
2
3
17
24
10.30501/acp.2016.70026
70026
Optical characterization of BK7 borosilicate glasses containing different amounts of CeO2
Faranak Lak
faranak.lak92@tabrizu.ac.ir
1
Mohammad Rezvani
m_rezvani@tabrizu.ac.ir
2
Material Engineering, Tabriz University
Materials Science & Engineering, Tabriz University
Borosilicate BK7 glasses doped with different amounts of CeO2 (0.5,1,1.5%) were prepared by the convenient melting process in this work. DTA analysis proved that 0.5-1% CeO2 has a network modifier role and then up to 1.5% it shows network former role.For structural studies, FT-IR and Raman spectroscopy were carried out. Fermi energy level, direct/ indirect optical band gap and Urbach energy were determined by using UV-VIS spectra and calculating absorption and extinction coefficients.
https://www.acerp.ir/article_70026_ab54cb9e7d74d070bfac118d18e69028.pdf
Borosilicate glasses
BK7 glass
CeO2
Optical properties
eng
Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)
Advanced Ceramics Progress
2423-7477
2423-7485
2016-08-01
2
3
25
28
10.30501/acp.2016.70027
70027
Effect of ball milling on reactive microwave sintering of MgO-TiO2 System
Leila Nikzad
nikzad_l@merc.ac.ir
1
Samaneh Ghofrani
s_ghofrani@merc.ac.ir
2
Hudsa Majidian
3
Touraj Ebadzadeh
t-ebadzadeh@merc.ac.ir
4
Ceramic, MERC
Semiconductors, MERC
Ceramic, MERC
Ceramic , Merc
Abstarct In this paper, effect of mechanical activation on microwave reactive sintering of MgO - TiO2 system was investigated. Mixtures of MgO and TiO2 were milled at different times. Mixed powders along with 10 h milled powders were chosen for microwave sintering between 1000- 1400⁰C. Results showed that increasing of temperature up to 1400̊C for mixed powders could not give rise to complete formation of Magnesium titanate phases and raw materials were in the products. Also the densities of these samples were about 3 g/Cm3. With milling of reactants up to 10 h, it seems reactions could be completed at 1000⁰C and the density was augmented to 3.58 g/Cm3. The samples were sintered at 1400⁰C in a microwave furnace exhibited good microwave dielectric properties while εr and tan δ were 16.3 and 0.0001 respectively.
https://www.acerp.ir/article_70027_af281f2278d4db8a6f3fcab2eb5c532f.pdf
Mechanical milling
MgTiO3
Microwave sintering
eng
Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)
Advanced Ceramics Progress
2423-7477
2423-7485
2016-08-01
2
3
29
33
10.30501/acp.2016.70028
70028
Partial acetylene hydrogenation over commercial Pd-Ag/α-Al2O3 catalyst promoted by ionic liquid
Farshad Farshidfar
f.farshidfar@yahoo.com
1
Mahmood Kazemzad Asiabi
m-kazemzad@merc.ac.ir
2
Ali Khanlarkhani
alikh@merc.ac.ir
3
Mehran Rezaei
rezaei@kashanu.ac.ir
4
Dept. of Energy, Materials and Energy Research Centre
Dept. of Energy, Materials and Energy Research Centre
Nano-Technology and Advanced Materials, Materials and Energy Research Center
Department of chemical engineering, University of Kashan
1-butyl-3-methyl imidazolinium hydroxide ionic liquid (BMIm[OH]) is loaded on commercial low surface area Pd-Ag/α-Al2O3 solid catalyst to enhance higher selectivity of acetylene partial hydrogenation. Different experimental techniques such as atomic absorption spectroscopy, surface area measurement and gas chromatography have been utilized to characterize chemical, structural and catalytic properties of the catalyst. Additionally, FT-IR spectra are collected to study the synthesized ionic liquid. The selectivity and activity of the fresh and aged catalysts are compared for both ionic liquid free and loaded samples.
https://www.acerp.ir/article_70028_9a590ecd0353de0920cc6f50cdaf517c.pdf
acetylene hydrogenation
BMIm[OH]
Ionic Liquid
Palladium
Catalyst
FT
IR
eng
Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)
Advanced Ceramics Progress
2423-7477
2423-7485
2016-08-01
2
3
34
37
10.30501/acp.2016.70029
70029
Investigation of resistive switching in anodized titanium dioxide thin films
Ahmad Saraei
a.saraei6990@gmail.com
1
Mohammad Eshraghi
2
Abozar Massoudi
3
Semiconductors, Institute of materials and energy
Semiconductors, Materials and Energy Research Center (MERC)
Semiconductors , Materials and Energy Research Center (MERC)
In this work, TiO2 nanostructures were grown on titanium thin films by electrochemical anodizing method. The bipolar resistive switching effect has been observed in Pt/TiO2/Ti device. Resistive switching characteristics indicated the TiO2 nanotubes are one of the potential materials for nonvolatile memory applications. Increasing anodizing duration will increase nanotube lengths which itself causes increase in high resistance and low resistance difference.
https://www.acerp.ir/article_70029_2dbf98a6a16a8d08abeee9216b510964.pdf
Anodized Titanium Dioxide
Resistive switching
Nanotubes