Nano particle size violet tungsten oxide may be applied to produce nano-ceramic dispersion solution, which will be a very important material for manufacturing heat insulation materials in the future as it has high heat insulation and high transparency than many other thermal insulation materials. So, such material is much studied, especially, the raw material --- tungsten oxide.
Both nanometer violet tungsten oxide and nano grain size blue tungsten oxide can be used to prepared ultrafine tungsten powder. However, under the same conditions, the tungsten powder prepared by violet tungsten oxide is finer than the tungsten powder prepared by blue tungsten oxide. This shows that violet tungsten oxide powder can produce ultrafine powder that meets the requirements. That is to say, nano violet tungsten oxide is very suitable for the production of ultrafine tungsten carbide powder with finer particle size. However, what should be noted is that the tungsten powder prepared by violet tungsten oxide powder has slightly higher oxygen content than the tungsten powder prepared by blue tungsten oxide powder.
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