Silicon nitride ceramic is a very hard material. It has many advantages, such as wear resistance, lubrication and stability. It has been widely used in many fields and plays an important role. It is a relatively popular ceramic material at present. Today, I will give you a specific introduction of the characteristics of silicon nitride ceramics.
1. The hardness of silicon nitride ceramics can be compared with corundum and alloy steel, and the strength is not affected by temperature, even when the temperature is over 1200 degrees, it will not change.
2. The thermal conductivity is very large, the thermal expansion coefficient is very small, and it has good thermal shock resistance performance.
3. The chemical property is relatively stable, and it also has certain anti-oxidation characteristics. It has many applications, such as mechanical seal ring, combustion chamber, valve, permanent mold, etc.