Physical and chemical properties of quartz glass

        Quartz glass is a special industrial glass made of silica and is an excellent material. Quartz glass has a range of excellent physical properties. The softening point temperature of quartz glass is about 1730°C, it can be used at 1100°C for a long time, and the temperature can reach 1400°C for a short time. 2. Corrosion resistance. Except for hydrofluoric acid, the chemical stability of quartz glass at high temperature is comparable to that of engineering materials. 3. Good thermal stability. The thermal expansion coefficient of quartz glass can withstand severe temperature changes, and the quartz glass will not burst when heated to about 1100 ° C in normal temperature water. 4. Good light transmission performance. Quartz glass has good light transmittance in the entire optical band from ultraviolet to infrared. The transmittance of visible light is 95, which is in the ultraviolet spectral region, and the transmittance can reach 90. 5. Good electrical insulation performance. The resistance value of quartz glass is equivalent to that of ordinary glass, which is an electrical insulating material and has good electrical properties even at high temperatures. Due to its excellent physical and chemical properties, quartz glass is used in various fields such as electric light sources, semiconductors, optical communications, military industry, metallurgy, building materials, chemistry, machinery, and electricity.