Fused silica

© Quarzwerke GmbH

Fused silica: amorphous, extremely low coefficient of thermal expansion

Fused silica is the amorphous modification of high purity quartz. It is synthesized using an electric arc. The main feature of fused silica is an extremely low coefficient of thermal expansion
(0,5 * 10-6/K). Therefore these products are particularly suitable for special applications with alternating temperature loading. Grain sizes down to 1m are achieved by iron free grinding and subsequent air separation. Thus we are able to offer grain size distributions from a couple of millimeters down to a few micrometers.

key applications:

• electrical insulating
• casting resin systems
• electronics
• precision casting
• engineering ceramics

High Performance Fillers based on fused silica: AMOSIL, SILBOND, SILMIKRON