
Nano violet tungsten oxide powder may be applied for producing thermal insulation dispersion liquid. Violet tungsten oxide can also be used to prepare tungsten powder and tungsten carbide powder. After the violet tungsten oxide powder, tungsten powder and tungsten carbide powder were made into film samples, the SEM images of these films were observed. The inside of the larger particle group of the field of view was selected. It can be seen from the image “a” below that the grain…