发明授权
- 专利标题: Processing entailing sol-gel fabrication of silica glass
- 专利标题(中): 二氧化硅玻璃的溶胶 - 凝胶加工处理
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申请号: US09365191申请日: 1999-08-02
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公开(公告)号: US06343490B1公开(公告)日: 2002-02-05
- 发明人: John C Alonzo , Suhas Bhandarkar , Michael P Bohrer , David Wilfred Johnson, Jr.
- 申请人: John C Alonzo , Suhas Bhandarkar , Michael P Bohrer , David Wilfred Johnson, Jr.
- 主分类号: C03B37016
- IPC分类号: C03B37016
摘要:
Silica sols exhibiting desirable yield-dilatancy are fabricated. A mixture comprising silica, water, and a pH-adjusting agent is provided, and the mixture is shear-mixed. The desirable properties of the resultant sol are attained by using a concentration of pH-adjusting agent that provides a viscosity within a particular range during shear mixing. The requisite pH range, however, changes depending on the properties of the silica mixture. A discovered technique for determining this changing pH range is by selecting the pH based on the silica surface area per unit volume of the mixture.