Tungsten carbide is a compound composed of tungsten and carbon, with a molecular formula of WC and a molecular weight of 195.85. Tungsten carbide is a black hexagonal crystal with metallic luster and hardness similar to diamond, it is a good conductor of electricity and heat.
Tunsten Carbide Properties:
Tungsten carbide is a black hexagonal crystal system , soluble in mixed acid of nitric acid and hydrofluoric acid and aqua regia, insoluble in cold water. The chemical properties of tungsten carbide are stable.
Tungsten carbide is a gray powder with metallic luster. It is insoluble in water, hydrochloric acid and sulfuric acid, but easily soluble in a mixed acid of nitric acid and hydrofluoric acid. Pure tungsten carbide is fragile, and if a small amount of titanium, cobalt and other metals are added, the brittleness can be reduced.
Tungsten Carbide Application:
Tungsten carbide powder used as a steel cutting tool is often added with titanium carbide, tantalum carbide or their mixture to improve the anti-knock ability. Tungsten carbide powder is used in cemented carbide production materials.
Tungsten carbide is widely used as high-speed cutting tools, furnace structural materials, jet engine parts, cermet materials, resistance heating elements, etc.
Tungsten carbide powder is used to manufacture cutting tools, wear-resistant parts, melting crucibles for metals such as copper, cobalt, and bismuth, and wear-resistant semiconductor films.
Tungsten carbide is used as a super-hard tool material, wear-resistant material, and it can form a solid solution with many carbides. WC-TiC-Co cemented carbide tools have been widely used. It can also be used as a modified additive of NbC-C and TaC-C ternary system carbides, which can reduce the sintering temperature and maintain excellent performance. It can be used as aerospace materials.
Tungsten carbide (WC) powder is synthesized by using tungsten anhydride (WO3) and graphite in a reducing atmosphere at a high temperature of 1400 to 1600 ℃, and then hot pressing sintering or hot isostatic pressing sintering can produce dense ceramic products.
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