Transparent Microporous Silica By The Sol-Gel Process

L. C. Klein; T. A. Gallo; G. J. Garvey

doi:10.1117/12.964629

26 December 1984 Transparent Microporous Silica By The Sol-Gel Process

L. C. Klein, T. A. Gallo, G. J. Garvey

Proceedings Volume 0505, Advances in Optical Materials; (1984) https://doi.org/10.1117/12.964629
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

The sol-gel process is a chemical approach to making optical materials at low temperature. Through hydrolysis and condensation reactions, a metal alkoxide such as tetraethyl-orthosilicate (TEOS) is converted largely to high surface area silica gel at room tempera-ture. After drying, the result is a rigid monolithic shape of bulk density about half that of conventional fused silica. The reduced weight of the shape is due to interconnected microporosity. The average pore size is generally smaller than 10 nm, and the material is transparent to visible light.

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L. C. Klein, T. A. Gallo, and G. J. Garvey "Transparent Microporous Silica By The Sol-Gel Process", Proc. SPIE 0505, Advances in Optical Materials, (26 December 1984); https://doi.org/10.1117/12.964629

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