Dark blue nano tungsten oxide may be applied for producing thermal insulation thin film, which can also be used to prepare metal tungsten powder. As you may have known, tungsten oxide and reduction conditions determine the grain size of tungsten powder, and the grain size of tungsten powder largely determines the final grain size of tungsten carbide powder.
Since tungstic acid and tungsten trioxide are replaced with blue tungsten oxide in the late 1980s and early 1990s, the quality and economic benefits of tungsten carbide products have increased significantly. So, it can be seen that blue tungsten oxide is beneficial to the production of ultrafine tungsten powder.
Therefore, some researchers started from the phase composition of reduction process of blue tungsten oxide to explore the change of the main phase components of blue tungsten oxide during the reduction process: β-tungsten oxide (WO2.9), γ-tungsten oxide (WO2.72), tungsten dioxide and tungsten powder. So, it is beneficial to select different raw materials and control process conditions to obtain the required tungsten powder.
More details, please visit:
http://www.tungsten-powder.com/Blue-Tungsten-Oxide.html
