Fused Silica Powder is a high-purity form of silica that is produced by melting pure silica (SiO2) at very high temperatures and then rapidly cooling it to form a solid. It is composed of amorphous silicon dioxide (SiO2) and has a very low coefficient of thermal expansion, making it ideal for use in high-temperature applications. Fused Silica Powder is utilized in the production of refractory materials, which are used to line furnaces and other high-temperature equipment. Fused Silica Powder is also used in the production of glass and ceramics, where it can help to improve their thermal shock resistance and mechanical properties.