As the most excellent comprehensive properties of structural ceramics material, silicon nitride in the high temperature, high speed, strong corrosive medium such as extreme environment with special application value, is considered to be one of the most development prospect of application of structure ceramic materials, in mechanical engineering, metallurgy, chemical industry, aerospace, biomedical, semiconductor and other industries are widely used. Read More »

Black silicon carbide is made of quartz sand, petroleum coke (or coal coke), wood chips and other raw materials in the resistance furnace by high temperature smelting, in the resistance furnace by high temperature smelting, black opaque body, hexagonal crystallization, Mohs hardness is 9.15. Second only to diamond and boron carbide, brittle and sharp performance and a certain electrical conductivity. Read More »

Silicon nitride​ is a compound synthesized under artificial conditions. Although silicon nitride was synthesized directly more than 140 years ago, it was only remembered as a stable "refractory" nitride. After the Second World War, the rapid development of science and technology, the urgent need for high temperature resistance, high hardness, high strength, corrosion resistant materials. Read More »

Silicon nitride​ (Si3N4) thin films are widely used as dielectric materials. As amorphous insulating material, dielectric properties of silicon nitride film is better than that of silica membranes, have to the movable ions blocking ability strong, compact structure, small pinhole density, good chemical stability, high dielectric constant, etc. In the field of integrated circuit manufacturing is widely used for surface passivation coating, insulation, impurity diffusion etching mask mask, as well as the surface of the semiconductor encapsulation and so on. Read More »

In recent years, material scientists have synthesized a new class of 312 ceramic materials​, whose general formula is M3XZ2, in which M is one or several transition metal elements (such as Ti, V, etc.), X is one or several main group elements, multiple III and IV main group elements (such as Al, Ge, Si, etc.), Z is one or several non-metallic elements (such as C, N, B, etc.). Read More »

Aluminum nitride​ has high resistivity, high thermal conductivity (8-10 times of Al2O3), and low expansion coefficient similar to silicon, making it an ideal material for high temperature and high power electronic devices. Commonly used ceramic substrate materials are beryllium oxide, alumina, aluminum nitride, etc., among which alumina ceramic substrate thermal conductivity is low, thermal expansion coefficient and silicon do not match; Read More »

Silicon nitride​ (Si3N4) is a kind of ceramic material with high melting point and high hardness and chemical inertness. Hot-pressed silicon nitride, in particular, is one of the hardest substances in the world. Silicon nitride ceramics have low thermal expansion coefficient and high thermal conductivity, so they have excellent thermal shock resistance. Read More »

Nanomaterials​ refer to ultrafine materials with a grain size of nanometer level (1 m). Their sizes are between molecules, atoms and bulk materials. They generally refer to tiny solid powders in the range of 1 ~ 100nm. Nanomaterial is a kind of third kind of solid material which is different from both crystalline and amorphous state. Read More »

Hexagonal boron nitride (H - BN), is a kind of white powder material, its crystal structure and graphite are very similar, and both the physical and chemical properties are similar, so the hexagonal boron nitride is also referred to as "white graphite", in the heat conduction, lubrication, hydrogen storage, battery diaphragm material, high temperature oxidation resistance coating, catalysis, etc all have important applications. Read More »