| Black silicon carbide is produced at high temperature in an electric resistance type furnace with quartz sand and petroleum coke as its main raw materials. It is brittle and sharp, and it has heat and electric conductivity in some degree. Black silicon carbide¡¯s hardness is 3100~3280kg/mm2,it has great hardness, good self- sharpening and excellent grinding properties. It is used in the fields of the ceramic manufacturing, abrasive, grinding aid, and advanced refractory material. It¡¯s mainly used as materials of ceramic industry, electric porcelain, black metallurgy, nonferrous metals, product of the glass manufacturing and advanced refractory |
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