26 December 1984 Transparent Microporous Silica By The Sol-Gel Process
Author Affiliations +
Proceedings Volume 0505, Advances in Optical Materials; (1984); doi: 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.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. C. Klein, T. A. Gallo, G. J. Garvey, "Transparent Microporous Silica By The Sol-Gel Process", Proc. SPIE 0505, Advances in Optical Materials, (26 December 1984); doi: 10.1117/12.964629; https://doi.org/10.1117/12.964629
PROCEEDINGS
5 PAGES


SHARE
KEYWORDS
Silica

Light scattering

Polymers

Bioalcohols

Sol-gels

Nitrogen

Scattering

Back to Top