
Dark blue nano tungsten oxide may be applied for preparing transparent thermal insulation material. Certainly, the application of blue tungsten oxide is not limited to this. Blue tungsten oxide can also be used for the preparation of tungsten powder by cyclic redox process. Some scholars have studied the effect of cyclic redox of blue tungsten oxide on the particle size distribution of tungsten powder. They found that: 1.0 First reduction. Blue tungsten oxide is first reduced to tungsten powder in…