
Tungsten oxide nanopowder, which may be used for manufacturing thermal insulation dispersion, may be prepared by vapor phase deposition method. Preparation of Tungsten Oxide by Vapor Deposition Method The tungsten trioxide powder was placed in a quartz tube, and a tungsten sheet was placed as a substrate in a section of the quartz tube. Then, tungsten trioxide powder was heated and passed through N2. After a while, a layer of purple product was obtained on the tungsten sheet. And it…