Quartz glass chemical properties

Quartz glass has a very low coefficient of thermal expansion, high temperature resistance, excellent chemical stability, excellent electrical insulation, low and stable ultrasonic delay performance, the best UV spectrum performance and visible light and near-infrared spectrum. Performance, and has higher mechanical properties than ordinary glass. Therefore, it is one of the indispensable and excellent materials in modern cutting-edge technology in space technology, atomic energy industry, national defense equipment, automation system, and semiconductor, metallurgy, chemical industry, electric light source, communications, light industry, building materials and other industries. Quartz glass is made of natural crystalline quartz or synthetic silane through high temperature melting. The melted product has excellent processing performance. In the extremely high viscosity range, the tube and rod can be hot processed like ordinary glass fine work, and the abrasive tool made of diamond or silicon carbide can be used for high-speed machinery. Processing, thereby making various complex-shaped instruments and special products. The performance of quartz glass mainly depends on its purity, followed by the process or thermal system. The presence of trace impurities will have a significant impact on the performance of the quartz glass; at the same time, due to a slight negligence in the process or thermal system, it will bring a variety of defects to the appearance and quality, resulting in a large number of waste products.