Application Of Tungsten Nano Powders To Know

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Transition metal carbides, in particular tungsten carbide, tend to be attractive because of their physical and mechanical properties. They are characterized by the high melting point, unusual hardness, low friction, chemical inertness, oxidation resistance and excellent electrical conductivity.

Today, highly dispersed tungsten powder appears to be very important for the production of wear resistant parts, cutting, non-ferrous alloys, etc.

Properties which make tungsten powers so special

It is well known that fine grained alloys have better mechanical properties as compared with the coarse alloys of the same composition in the same terms. The use of ultrafine tungsten carbide powder or Nano sized tungsten carbide powder is one of the most effective means to produce new materials with required properties.

There are several tungsten carbide phases, the most important are WC and W 2 C. Although W2C is unstable at T = 1300 ° C, in most cases, the mixture of WC and W2C is observed in the synthesized products. Precipitation of the single phase of WC is possible only in the narrow zone of the technological parameters.

Production of pure highly dispersed metallic powder within the first step. The starting material is pure WO3, tungsten acid or ammonium tungstate. The second step comprises tungsten carbonization of carbon in the graphite furnace with a hydrogen atmosphere. The obtained tungsten carbide powder has indefinite shaped particles melted, minimum 3-5 um and contains 5% less W2C.

The reducing conditions have a great influence on the characteristics of the metal powder and forming carbide. If you have any interest in nano tungsten carbide powder, please to contact the tungsten powder suppliers online. You can take the quotation and choose according to your requirement.