The excellent physical and chemical properties of semiconductor mesoporous single crystal materials make semiconductor porous single crystal materials have a wide range of applications in the fields of solar cells, catalysis, lithium batteries and biosensors.

Ultrafine tungsten carbide having high strength, hardness and wear resistance to meet the development of modern industrial and specialty materials, widely used in making integrated circuit boards micro drill, drill a dot matrix printer, hard processing tool material, medical tooth drill and so on.

The tungsten bar containing potassium is a material for manufacturing high-temperature heating devices such as electric light sources, electronic devices, vacuum sputtering. The manufacturing process is as follows: in the blue tungsten oxide powder, an excess of silicon, aluminum, and potassium are added to make the doping blue tungsten is then reduced to doped tungsten powder under high temperature hydrogen.

Violet tungsten oxide (W₁₈O₄₉) was prepared for the treatment of nuclear contamination. The solvothermal method used was similar to the hydrothermal method. It was completed in a special closed reaction vessel (autoclave) and replaced with other organic solvents. Water as a reaction medium, organic solvents also play a role in the media, mineralization and transfer pressure, the boiling point of organic solvents is relatively low, so the reaction temperature required in the preparation process is relatively low, less energy consumption, common solvents are ethanol.

The industrial process for preparing ammonium paratungstate must use a large amount of water and produce a large amount of waste water. Is there a way to change the dependence of purification on water? Recently, some scholars have innovated a process for preparing ammonium paratungstate that is different from traditional methods. Its general content is as follows:

Tungsten carbide is the main raw material for the production of hard alloy. The uniformity of the alloy powder is not ideal. It has a great influence on the pressing of the hard alloy. We can try new method:

Rare earth elements are highly active metals, which are usually difficult to be extracted from their compounds in general conditions. The electrolytic extraction requires the crucible and tungsten electrode.

Tungsten-base alloy has the advantages of high density, high strength and hardness, good thermal conductivity properties, thermal conductivity, low gamma ray absorption ability and high pressure resistance, excellent electrical erosion resistance characteristics of expansion, plays an irreplaceable role in the defense industry, aerospace, electronic information, energy, metallurgy, machinery manufacturing and nuclear industry etc..

Metal oxide semiconductor materials have excellent properties. How to reduce the production cost of semiconductor materials and increase the conversion rate of energy has become a hot topic of research.