CAS 12033-89-5 Si3n4

Silicon nitride can be produced by heating silicon powder in nitrogen or by reacting silicon halide with ammonia. It is a bright gray or light gray material of exceptional hardness and resistance to high temperatures. Due to its properties, silicon nitride is used where high resistance to wear and high temperatures is required.

Silicon nitride is the key raw material for the preparation of silicon nitride ceramics, and its characteristics are the key factor influencing the formation and sintering of silicon nitride bodies, and have an important effect on the density and mechanical properties of the final silicon nitride ceramic products.

• It has good corrosion resistance, thermal resistance and wear resistance. It can be used at temperatures below 1900 degrees Celsius.
• It has excellent separation resistance, very stable chemical composition and thermal conductivity.
• The product contains nitrides, which have the characteristics of low expansion rate, high thermal conductivity and strength, and almost no shrinkage when heated.
• High strength and wear resistance.
• High temperature oxidation resistance. An oxide film will form on the surface after long-term use, which can protect the internal materials from chemical reactions.

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