Tungsten carbide (WC) is the most important tungsten compound, and main component of WC-Co cermet composites. are widely used engineering materials due to combination high hardness strength with toughness plasticity metallic binder. The direct synthesis WC from concentrate containing ∼70% WO3 has been achieved by carbothermic reduction. Mineral/carbon black mixtures were prepared planetary ball...

In this research, two different carbonaceous materials (Graphite:G and Petrocoke:P) were separately compared in terms of the carbothermic reduction of hematite and anatase in order to synthesize Fe-TiC nanocrystalline composite by mechanically activated sintering method. Powders were activated in a planetary high-energy ball mill under argon atmosphere for 0, 2, 5, ...

Ceramic-matrix composites containing TiC-TiN have been used in a variety of application because of their superior properties such as high hardness, good wear resistance and high chemical stability. In this research, effect of coke and coke/calcium beds in synthesis of Al 2O3-Ti(C, N) composites using alumino-carbothermic reduction of TiO 2 has been investigated. Al, TiO 2 and active ca...

Abstract The quality of Aluminum oxynitride (AlON) powder is the main factor affecting properties ceramics. To accurately control nitrogen AlON content and improve dispersion degree powder, was prepared from γ-Al 2 O 3 activated carbon by carbothermic reduction nitridation. uniformity distribution raw materials dimension microstructure controlled changing time rotation rate ball milling process...

Bulletin of Science, Technology & Society Vol. 26, No. 4, August 2006, 305-313 DOI: 10.1177/0270467606290710 Copyright © 2006 Sage Publications An economically viable and environmental friendly method of generating hydrogen for fuel cells is by the reaction of certain metals with steam, called metalsteam reforming (MSR). This technique does not generate any toxic by-products nor contributes to ...

Mill scale and aluminum dross are the industrial wastes from steel industries, which have high concentrations of Fe2O3 Al2O3, respectively. This paper reports conversion reducible metal oxides in into an alloy via carbothermic reduction at 1550 °C. Scale were mixed with graphite three different C/O molar ratios 1, 1.5, 2 to produce a pellet. The pellets heated °C for up 6 h under argon atmosphe...