| 摘要 |
PURPOSE:To easily obtain glass having various shapes by a sol-gel process by preparing liquid sol from metallic alkoxide and performing the specified treatment for this sol to produce wet gel, drying and sintering it. CONSTITUTION:In the production of glass by a sol-gel method wherein liquid sol is prepared by using metallic alkoxide as a main raw material and this is allowed to gel to produce wet gel and thereafter this wet gel is dried and sintered, glass is produced by performing the following treatment in the process for producing wet gel. (a) Wet gel having an aimed shape is produced by closely sticking a plurality of wet gels having various shapes to bond them. (b) The bond of the wet gel is performed after the reaction under the gelating conditions is finished. (c) The conditions at a time for gelation are maintained for at least one day or more until transferring to the drying process after closely sticking wet gel. |
