7 Result(s)
within
Hamidreza Baharvandi
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Article
Thermodynamic and phase analysis of SiC-nano/microB4C-C composites produced by pressureless sintering method
In this research, thermodynamic and phase analysis of SiC-Nano/microB4C composites with different weight percentages of secondary phase including 0, 0.5, 1, and 2 wt% -nano /microB4C made by pressureless sinterin...
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Article
Effect of heat-treatment temperature on mechanical properties and microstructure of alumina–SiC nanocomposite
In this investigation, 90 vol. % alumina and 10 vol. % silicon carbide nanopowders were combined. Initial samples were fabricated by the hot press method under 20-MPa pressure of 1650 °C. Then, the nanocomposi...
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Article
Evaluation of Different Parameters on Production of Zr2Cu by Mechanical Alloying
Intermetallic compounds because of their high melting point temperature, good mechanical properties, and high corrosion resistance are attractive. The Zr2Cu intermetallic compound can be produced by a mechanical ...
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Article
Microstructure and Properties of DCP-Derived W-ZrC Composite Using Nontoxic Sodium Alginate to Fabricate WC Preform
In the present work, tungsten carbide (WC) preforms were fabricated by gel-casting process, using different nontoxic Na-alginate to tertiary calcium phosphate ratios and different loadings of WC powder in the ...
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Article
Open AccessDetermination of fracture toughness using the area of micro-crack tracks left in brittle materials by Vickers indentation test
In this article, a new method has been presented for the estimation of fracture toughness in brittle materials, which enjoys improved accuracy and reduced costs associated with fracture toughness testing proce...
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Article
Open AccessAn experimental investigation on the fabrication of W-Cu composite through hot-press
In this paper the feasibility of fabricating W-Cu composite by hot-press has been studied and the best parameters for hot-pressing were acquired. W/20 vol%Cu composite was successfully prepared by this process...
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Article
Preparation of titanium diboride powders from titanium alkoxide and boron carbide powder
Titanium diboride powders were prepared through a sol-gel and boron carbide reduction route by using TTIP and B4C as titanium and boron sources. The influence of TTIP concentration, reaction temperature and molar...
