Method of making a sol-gel glass body and removing same from mold
Rabinovich, Eliezer M.
Johnson, David W.
Frankenthal, Robert P.
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Citation (published version)Greg Blonder, Eliezer M. Rabinovich, David W. Johnson, Robert P. Frankenthal. "Method of making a sol-gel glass body and removing same from mold." U.S. Patent 5,578,101-A.
The disclosed method of making a glass body by a sol/gel process comprises electrochemically assisted release of the gel body from the mold in which the body was formed. More specifically, the method involves gelation of a sol in a mold that comprises a first conductor member, with a second conductor member also being in contact with the sol and/or gel, and causing the flow of a current between the first and second conductor members, with the first member being the cathode. In consequence of the current flow a substantially liquid lubricating layer that facilitates removal of the gel body from the melt exists at the cathode/gel interface.