Fused silica is the amorphous modification of quartz. It is manufactured synthetically using an electric arc at approx. 2000°C, and has an extremely low thermal expansion coefficient (0.5*10-6/K). This characteristic is of decisive importance for specific applications that need to withstand extreme temperature changes. Using a combination of iron-free grinding and optical technologies, Quarzwerke is capable of producing fused silica with particle sizes of 1μm.
Features
• Chemically inert
• Extremely low thermal expansion coefficient 0.5*10-6 -1(at temperatures of 20-300°C)
• Density 2.2 g/cm3
• Hardness 6.5 (Mohs)
Key applications
• Electrical insulation
• Casting resin systems
• Electronics
• Precision casting
• Technical ceramics