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Thermal properties of quartz glass (best)

2019-09-24 17:34:53 feilihua 3

Thermal expansion coefficient of quartz glass is extremely small, the lowest sensitivity to thermal changes. Due to high viscosity quartz glass, even in a molten state viscosity remains large, so high temperature performance superior to any other kind of glass. The viscosity of quartz glass greatly influenced by hydroxyl content and impurity content, hydroxyl and metal content increases viscosity.

 

- Each characteristic temperature of quartz glass

 

Characteristic temperatureTransparent quartz glassSynthetic quartz glass
Transition temperature1075-11801025-1120
Strain and Temperature10751025
Annealing temperature11801120
Softening temperature17301600
Thermal processing temperature1700-21001600-2000


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