High-hardness silica glass and method of producing the same

Details High-hardness silica glass and method of producing the same High-hardness silica glass and method of producing the same

1990-02-27

1991-01-01

Schor, Kenneth M.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 324, 65 606, 65 607, 264 12, C03B 1100, C03C 2300, C03C 1722

Patent

active

049815032

ABSTRACT:
High-hardness silica glass having transparency substantially on the same level as silica glass and a Vickers hardness of 12-20 GPa is produced by covering silica glass with powder and treating the silica glass at a temperature of 1400.degree.-2500.degree. C. and a pressure of 10-300 MPa in an atmosphere of an inert gas or a nitrogen gas.

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Hackh's Chemical Dictionary, 4th Ed.; Grant, J.; McGraw-Hill Book Co.; pp. 576-577.
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