Silicon Nitride Ceramic

Silicon nitride is a kind of widely used advanced industrial ceramic, to meet the needs of different fields, raw material composition and appropriate sintering process can be selected, and required properties are achieved. 

1. High strength 

Strength of silicon nitride is high, flexture strength is up to 900MPa, also the fracture toughness is high, so it can be used for application with heavy load and mechanical shock.

2. Corrosion resistance

Silicon nitride material has good corrosion resistance, it does not react with various acids, alkalis, salt or other chemical agents, without the risk of failure caused by corrosion.

3. High temperature resistance

The normal use temperature of the silicon nitride ceramic can reach higher than 1100℃, available for the requirements of high temperature environment.

4. Good wear resistance

Silicon carbide material has high hardness, which is up to 16GPa, so the wear resistance is very good and service life is long.

5. Good thermal shock resistance

Silicon carbide has small thermal expansion, and high termal conductivity, thermal shock resistance is very good, up to 550℃.

1. Mechanical engineering industry

Silicon nitride can be made into a variety of mechanical parts and tools, including bearing, shaft, insulation ring, gasket, grinding bead, cutting tool, drill bit, etc, which is widely used in harsh environment like heavy load, high temperature, high humidity, and corrosive environment, also the advantage of long life time is very attractive to users.

2. Semiconductor industry

Silicon nitride ceramic substrate has good corrosion and high temperature resistance, also with high strength and wear resistance,  it is widely used in semiconductor parts and integrated circuits, including power components, inverters, power modules, multi-device integrated circuits, etc.

3. High temperature refractory industry

Silicon carbide ceramic can be used to produce high temperature crucible,  heating element, thermocouple protection tube, etc.