| 摘要 |
PURPOSE:To mass produce quartz glass at a low cost in synthesizing the quartz glass from a metal alkoxide as at least a raw material at a low temperature by the sol-gel method, by placing sheets of dry gel on top of each other, and sintering the resultant sheets. CONSTITUTION:Aqueous hydrochloric acid is added to hydrolyze ethyl silicate under vigorous agitation. Fine powder silica is then added to the resultant solution, uniformly dispersed and adjusted to 4-6pH. The resultant sol is then added to a suitable container, and gelatinized, contracted and dried to give sheets of dry gel 2. For example, 10 sheets of the resultant dry gel 2 can be placed on top of each other in a sintering furnace 1, and sintered to produce 10 sheets of transparent quartz glass at a time. |
