Glass manufacturing – Processes – With shaping of particulate material and subsequent fusing...
Patent
1987-01-29
1989-01-31
Schor, Kenneth M.
Glass manufacturing
Processes
With shaping of particulate material and subsequent fusing...
65 183, 65901, 501 12, C03B 1906
Patent
active
048013188
ABSTRACT:
In a forming a silica glass at low temperature, a fumed silica is added to a hydrolyzed solution of a metal alcoxide. 0.2-5 mol of fumed silica is added to 1 mol of metal alcoxide. Being uniformly dispersed, the solution is gelled and dried to be dry gel and then sintered to be non-porous. This process allows a practically large sized silica glass to be materialized which has been impossible by the previous sol-gel technology. In addition, a further large silica glass can be prepared by adjusting pH value to 3-6 with addition of base in the sol solution.
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Kanbe Sadao
Miyashita Satoru
Takeuchi Tetsuhiko
Toki Motoyuki
Kaplan Blum
Schor Kenneth M.
Seiko Epson Corporation
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