Silicon Nitride is a chemical compound of silicon and nitrogen. It is a hard ceramic and is mostly used in high-endurance and high-temperature applications. High strength over a broad temperature range Moderate thermal conductivity Low coefficient of thermal expansion Moderately high elastic modulus Excellent thermal shock resistance,Ability to withstand high structural loads to high temperature Superior wear resistance.Unusually high fracture toughness Ideal for the Mineral Sands Processing and Aluminium Processing industries.