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.
Black silicon carbide
black silicon carbide is produced at high
temperature in an electric resistancetype furnace with quarts sand and
petroleum coke as its main raw materials. Its hardness is between fused alumina
and synthetic diamond. Mechanical intensity of it is higher than fused alumina.
It is brittle and sharp and has electrical and heat conductivity in some degree.
The abrasives made of it are suitable for working on cast iron, non-ferrous
metal, rock, leather ,rubber, etc.It is also broadly used as refractory
material and metallurgical additive.