Invention Application
WO2008140676A3 GLASSES HAVING LOW OH, OD LEVELS 审中-公开
具有低OH,OD水平的玻璃

GLASSES HAVING LOW OH, OD LEVELS
Abstract:
A fused silica glass and a fused silica article having a combined concentration of at least one of OH and OD of up to about 50 ppm. The fused silica glass is formed by drying a fused silica soot blank or preform in an inert atmosphere containing a drying agent, followed by removal of residual drying agent from the dried soot blank by heating the dried soot blank in an atmosphere comprising an inert gas and of oxygen.
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