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.

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.

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.

Environmental issues have followed the rapid development of the social economy. Nowadays, environmental issues have been put on the agenda as an important issue that cannot be avoided. Therefore, we must not only pursue economic development, but also go side by side with environmental protection! Therefore, the emergence of new environmentally-friendly materials will always become a topic after people have a meal. Although it is only a topic of time, it is not very shocking and will not detonate the audience. It just makes people feel inexplicable peace of mind! For example, the emergence of new environmentally friendly inorganic pigments, rare earth pigments, is still the focus of attention in the near future, because our new environmentally friendly rare earth pigments have been in line with international standards! And environmental protection is the eternal trend!

A few days ago, the 2018 Summer Davos Forum and the 12th Summer Davos Forum were held in Tianjin. The theme of this forum is “Building an innovative society in the fourth industrial revolution”. The theme of this conference is mainly aimed at the issues of general concern to all parties, namely, how to continue to strengthen new kinetic energy in the current international environment, where the factors of instability and uncertainties have increased significantly, and the trend of anti-globalization has risen. And promote the sustained and steady growth of the world economy?

Tungsten has a very high melting point, very high strength, very small electron overflow work, and good chemical and chemical properties such as good chemical stability and high temperature conductivity. Therefore, tungsten has excellent properties in the electronics industry and aerospace technology. Application prospects, molten salt electrodeposition is a method for preparing high-quality metals, with its simple equipment composition and operation methods, as well as its good bonding ability and other advantages have been widely concerned.

In the field of pollutant degradation and energy production, semiconductor photocatalysis is one of the most promising methods. In 2010, researchers at the Material Research Institute found that silver phosphate had photocatalytic effects, and the photocatalytic oxidation effect was more than tens of times that of the known photocatalysts. 

As a new type of scintillation crystal, lead tungstate crystal (PbWO4) has been used by European Center for Nuclear Research (CERN) for its high density (8.28g/cm³), short radiation length (0.87cm) and Moliler radius (2.12cm), fast scintillation attenuation time (t < 50ns), strong radiation damage resistance and low cost. The precise electromagnetic calorimeter (ECAL) of the Large Hadron Collider (LHC).

In the field of pollutant degradation and energy production, semiconductor photocatalysis is one of the most promising methods. In order to find efficient photocatalysts, a large number of studies have focused on the Factors Affecting Photocatalytic activity.

Tungsten oxide has many symmetrical n-type semiconductor materials, such as hexagonal, cubic and so on. In particular, nano-tungsten oxide has a large specific surface area, and its volume effect, surface effect, quantum size effect and macroscopic quantum tunnel effect are significant, which makes its application areas continue to expand. It can be used as solar energy absorption materials, stealth materials, photocatalytic materials and gas sensitive materials such as NO_x, H₂S, NH₃, etc.