black silicon carbide for refractory crubile
Black silicon carbide (SiC) is a synthetic abrasive material produced by reacting silica sand and petroleum coke in an electric resistance furnace at high temperatures (around 2200°C). It is one of the hardest synthetic abrasives, with a Mohs hardness of 9–9.5, second only to diamond and boron carbide. Key Properties of Black Silicon Carbide: Hardness: Extremely hard …