Article ID Journal Published Year Pages File Type
1625379 Journal of Alloys and Compounds 2008 4 Pages PDF
Abstract

Nanocrystalline tungsten carbide (WC) was synthesized via a simple route by the reaction of metallic magnesium with sodium carbonate and tungsten hexachloride in an autoclave at 600 °C. X-ray powder diffraction pattern indicated that the product was hexagonal WC, and the cell constant was a = 2.913 Å, c = 2.838 Å. Transmission electron microscopy image showed that it consisted of particles with an average size of 20 nm. The product was also studied by BET and TGA. It had good thermal stability and oxidation resistance below 500 °C in air.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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