Tungsten disulfide has a molecular formula of WS₂ and a molecular weight of 247.97. Lubricity, conductivity and optical properties of tungsten disulfide make it an important material in mechanical lubrication and other relevant fields.

Tungsten disulfide has a molecular formula of WS₂ and a molecular weight of 247.97. It is a compound of tungsten and sulfur with grey metallic luster. Tungsten disulfide has properties including anisotropy, reactivity and catalytic activity, which make it an important material in petroleum industry and other fields.

Metal matrix composites (MMCs) have attracted more and more attention, and their reinforcements are generally particles, whiskers (or short fibers) and fibers. Metal matrix composites have higher specific strength, specific stiffness and high temperature strength than their matrix alloys. The preparation methods mainly include powder metallurgy sintering method and casting method (injection moulding).

At present, rolling assisted biaxial texture technology (RABiTS) is one of the main methods for fabricating textured metal substrates for high temperature coated superconductors.

White LED is a new solid-state lighting electric light source (SSL). Its principle and structure are different from those of previous vacuum electric light sources such as incandescent lamp and fluorescent lamp. SSL light source has many advantages, especially high light efficiency, energy saving, long life and pollution-free. Its application value and prospects are very promising. It has attracted the attention of many governments, scientific and technological circles and industrial circles, formulated development plans and injected heavy funds into development.

Superhard tungsten steel piercing needle refers to the wear-resistant tungsten steel products made of rare metal TiC and TaC which can significantly improve the high-temperature strength, high-temperature hardness and oxidation resistance of tungsten steel alloys. This kind of superhard material can keep almost unchanged at 600 ~℃, and still has a high hardness at 1100 ~℃, which is more than 10 times higher than that of ordinary tungsten steel matrix. It has great prospects to make wear-resistant, heat-resistant and efficient perforating needles of superhard tungsten steel with this material. The preparation process of superhard tungsten steel perforating needle includes:

The photoelectric properties of bismuth tungstate are severely limited by its low quantum efficiency. Therefore, the study of bismuth tungstate composites is an effective way to improve the photoelectric properties. The common practice is to dope materials with complementary effects.

Nano-semiconductor materials have been widely studied and applied due to their excellent properties such as quantum size effect, surface effect and unique optical properties. Tungstate, as an important oxide semiconductor, has been widely studied and applied in recent years.

At present, silver-tungsten electrical contact alloys have been widely used as contact materials in low-voltage electrical appliances due to their excellent wear resistance, welding resistance and arc erosion resistance.

Tungsten oxide is a transition metal oxide widely studied because of its unique properties. It has been widely used in electrochromic devices, sensors, separation materials and so on. In recent years, great progress has been made in the synthesis of nanoparticles, and the focus of research has shifted to the study of anisotropic nanoparticles.