Research Paper Surface Engineering
Determination of Residual Stress of PACVD Nanostructure TiN Coatings by GIXRD Method

Mahdi Raoufi; A. Zolanvari; Majid null zarezadeh

Volume 6, Issue 3 , September 2018, Pages 3-12

  In this study, thin layers of titanium nitride (TiN) were deposited on H13 steel substrates at different duty cycles and temperature of 520 ˚C using plasma assisted chemical vapor deposition (PACVD). Uniaxial residual stress was calculated by X-ray diffraction (XRD) and Sin2 Ψ method. Then the residual ...  Read More

Research Paper Bio Materials
Green Synthesis of Nanoceria (CeO2) and Evaluation of Enzyme like Characteristics

Azize Alayli Gungor; Hayrunnisa Nadaroglu; Aynur Babagil; Hicran Onem

Volume 6, Issue 3 , September 2018, Pages 13-25

  In this study, the synthesis of ceria (CeO2) nanoparticles (NPs) was examined by the biosynthesis method. Then, enzyme-like features of synthesized nanoceria were examined. Peroxidase enzyme from fig (Ficus carica) was used as a synthesis and stabilizer reagent. Furthermore, it was investigated whether ...  Read More

Research Paper Composite materials
From egg shell wastes (ESWs) into advanced materials: A rapid and simple synthesis of CaO/Ca2Fe2O5 as a novel nanocomposite-derived ESW biomaterial

Asadollah Hassankhani

Volume 6, Issue 3 , September 2018, Pages 26-33

  AbstractESW as a natural byproduct, although non-hazardous and contains calcium, magnesium carbonate and protein, is commonly disposed in landfills without any pretreatment because it was traditionally useless. In this regards, we wish to report the synthesis of a novel CaO/Ca2Fe2O5 nanocomposite based ...  Read More

Research Paper Bio Materials
Study on compressive and compatibility properties of titanium functionally graded scaffolds (FGSs) as bone replacements

Esmaeil Shahimoridi; Seyed Mohammad Kalantari; Arman Molaei

Volume 6, Issue 3 , September 2018, Pages 34-44

  Recently, Functionally Graded Scaffolds (FGSs) have attracted a lot of attention as bone replacements due to their gradient porosities as well as a bone structure. In present study titanium functionally graded scaffolds (FGSs) were fabricated by powder metallurgy route using Mg and carbamide as space ...  Read More

Research Paper Metallurgical Modeling
Using design of experiments approach and simulated annealing algorithm for modeling and Optimization of EDM process parameters

Masoud Azadi Moghaddam; Farhad Kolahan; Meysam Beytolamani

Volume 6, Issue 3 , September 2018, Pages 45-56

  The main objectives of this research are, therefore, to assess the effects of process parameters and to determine their optimal levels machining of Inconel 718 super alloy. gap voltage, current, time of machining and duty factor are tuning parameters considered to be study as process input parameters. ...  Read More

Research Paper Materials synthesis and charachterization
Extraction of Hemicellulose and Lignin from Sugarcane Bagasse for Biopolymer Films: Green Process

Sifiso P Nkosi; Krishnan Kanny

Volume 6, Issue 3 , September 2018, Pages 57-65

  A hemicellulose is any of several heteropolymers , such as arabinoxylans, present along with cellulose in almost all plant cell walls. Hemicellulose has a random, amorphous structure with little strength. It is easily hydrolyzed by dilute acid or base as well as myriad hemicellulase enzymes. In this ...  Read More

Research Paper Mechanical engineering
Effect of different yield functions on computations of forming limit curves for aluminum alloy sheets

Farzaneh Moosavi; Mojdeh Erfanian; Ramin Hashemi; Reza Madoliat

Volume 6, Issue 3 , September 2018, Pages 66-79

  In this article, the effect of different yield functions on prediction of forming limit curve (FLC) for aluminum sheet is studied. Due to importance of FLC in sheet metal forming, concentration on effective parameters must be considered exactly in order to have better theoretical prediction comparing ...  Read More

Research Paper Ceramics
Crystallization Kinetics Study in Al87Ni10La3 Amorphous Alloy

Amir Rofigar Haghighi; Akbar Heidarpour; Mohsen Eshaghpour Soorani; Mehdi Mansouri

Volume 6, Issue 3 , September 2018, Pages 80-88

  In this study, the crystallization behavior of melt-spun Al87Ni10La3 amorphous phase was investigated by using X-ray diffraction and non-isothermal differential thermal analysis techniques. The results demonstrated that the amorphous phase exhibited two-stage crystallization on heating, i.e., at first ...  Read More

Research Paper Corrosion and protection of materials
Application of mesoporous silica containing benzotriazole in the epoxy coating applied to plain carbon steel and study of its corrosion behavior

Mahdi Yeganeh; Mahdi Omidi; Arash Etemad; Mohammad Reza Rostami; Mohammad Esmaeil Shafiei

Volume 6, Issue 3 , September 2018, Pages 89-97

  The idea of smart inhibitors is based on the principle that an inhibitor is used where needed. This will reduce the use of inhibitors and protect materials in hostile environments. On the other hand, direct addition of the inhibitor within the coating can be harmful, resulting in the loss of inhibitors ...  Read More