Violet tungsten oxide powder may be applied in window heat insulation film so that such film will has high heat insulation and high transmittance and be applied in buildings and cars.
In recent years, submicron cemented carbide and ultrafine cemented carbide have received increasing attention due to their high toughness, high wear resistance and good high temperature strength. And their demand and application fields are expanding. In order to produce an ultrafine alloy with excellent properties, submicron tungsten carbide powder is first produced. As a result, material scholars from various countries competed to carry out research, for example, using violet tungsten oxide to produce tungsten powder and tungsten carbide powder. It is later confirmed that this is an effective method for producing submicron tungsten carbide powder at low cost, that is, using violet tungsten oxide as a raw material, reducing tungsten powder in a hydrogen atmosphere, and mixing tungsten powder and carbon to obtain submicron tungsten carbide powder.
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