Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1625379 | Journal of Alloys and Compounds | 2008 | 4 Pages |
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
Authors
Jianhua Ma, Yihong Du,