SIC-Black Silicon Carbide
Black Silicon Carbide (Black SiC), with the chemical formula SiC, is a synthetic ceramic material made by fusing quartz sand and petroleum coke at ~2200 °C. It features Mohs hardness ~9.2, high temperature stability (melting point ~2700 °C), excellent thermal shock resistance, chemical inertness, and wear resistance. Cost-effective and tough, it is widely applied in refractories for high-temperature furnaces, iron and steel troughs, abrasives (grinding wheels, sandblasting), metallurgical additives, and wear-resistant coatings, differing from green SiC by its lower cost and broader industrial use.