Tungsten oxide is a typical transition metal oxide, and nano-tungsten oxide is a new type of functional material. Due to its excellent discoloration performance, it is used in smart windows, large-area flat panel displays, gas sensors, dye-sensitized solar cells, and automatic There are a lot of potential applications in many new fields, such as rearview mirrors and energy storage devices.

Tunsten trioxide is a metal oxide semiconductor. It is a surface conductance (resistance) controlled gas sensitive material. The atomic properties of WO₃ crystal surface are active and it is easy to adsorb gas molecules. When gas molecules adsorb on the crystal surface, the carrier concentration inside the WO₃ crystal will change correspondingly, which shows the change of sensor resistance. Because the active atoms of tungsten oxide are located on the surface of the crystal, the contact area between the crystal surface and gas is greatly enlarged, which can effectively improve the gas sensing performance. It can be used in indoor environment detector, air purifier assembly, dangerous gas alarm device and so on.

Wear has become one of the main reasons for the failure of modern industrial machinery parts. With the development of industry, more and more high wear-resistant materials are required, and wear-resistant coatings have become the standard of most important wear-prone materials.

At present, the coarse separation of scheelite is usually by gravity separation or flotation. Because scheelite is a kind of ore which is easy to be gravity-dressed, but because scheelite has fine dissemination size, it needs to be grinded to 0.2 mm before the basic monomer dissociation, thus increasing the difficulty of gravity recovery, and the recovery rate of gravity-dressing is low, the taste of scheelite in crude concentrate is not high.