黑碳化硅是以石英砂,石油焦为主要原料,通过电阻烧高温冶炼而成,其硬度介于刚玉和金刚石之间,机械强度高于刚玉,性脆而锋利.具有一定的导电性和导热性.用它制作磨具,加工抗强张度低的金属和非金属材料.如有色金属,石材,皮革等.还广泛用于耐火材料,冶金添加剂.Blacksiliconcarbideblacksiliconcarbideisproducedathightemperatureinanelectricresistancetypefurnacewithquartssandandpetroleumcokeasitsmainrawmaterials.Itshardnessisbetweenfusedaluminaandsyntheticdiamond.Mechanicalintensityofitishigherthanfusedalumina.Itisbrittleandsharpandhaselectricalandheatconductivityinsomedegree.Theabrasivesmadeofitaresuitableforworkingoncastiron,non-ferrousmetal,rock,leather,rubber,isalsobroadlyusedasrefractorymaterialandmetallurgicaladditive.)