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Silicon Nitride Ceramics

Silicon Nitride Ceramics

Silicon nitride (Si3N4), a covalently bonded compound of silicon and nitrogen, was discovered in 1857 and was mass-produced as a ceramic material by 1955. Silicon nitride ceramics have many advantages that metal materials and polymer materials do not have, such as high temperature resistance (bending strength can reach more than 350MPa at 1200℃), acid and alkali corrosion resistance, self-lubrication, etc., it has been widely used in aerospace, national defense, machinery fields.

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