Description
Quartz glass is a one-component glass (SiO2). It is one of the most valuable materials for both science and industry. There is a distinction between synthetic and natural quartz glass. Synthetic quartz glass is made from pure silicon tetrachloride (SiCl4) following the Flammpyrolyse-method. The raw material of quartz glass is a natural crystal mined from the earth as rock crystal or pegmatite quartz. The raw material is pulverized to a fine-particle granulate and melted to quartz glass in an oxy-hydrogen flame.
Features:
- Good transmission behavior in ultra-violet, visible and infrared wavelengths
- High temperature endurance
- A low coefficient of thermal expansion
- Good thermal shock resistance
- Excellent electrical insulation
- High chemical purity
- A maximum operating temperature of 1100°C (permanently), or 1300°C (short-time)
Uses:
- High-temperature processes (high temperature resistance)
- Semiconductor- and light-industry (purity)
- Optics (good light transmission in visible, UV and IF wavelengths)
- Laser technology
- Electronics and electro-technology (low conductivity, high penetration field strength, low dielectric loss factor)
- Chemistry and pharmaceutics (chemical resistance, not hygroscopic, chemical purity, thermal shock resistance)
