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Silicon carbide ceramic (SiC) is an advanced ceramic material containing silicon and carbon. It occurs in nature as the extremely rare mineral moissanite. Synthetic SiC powder has been mass-produced since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics.

Silicon carbide ceramic materials have many excellent features such as high-temperature strength, good wear resistance, small thermal expansion coefficient, high hardness, thermal shock, chemical corrosion resistance, and etc. Therefore, it is widely used in automobile, mechanical and chemical industry, environmental protection, space technology, information electronics, energy and other fields. Silicon carbide has become an irreplaceable structural ceramic with excellent performance in many industrial fields.