Kundu, Debtosh and De, Goutam and Karmakar, Basudeb and Patra, Amitava and Ganguli, Dibyendu
(1992)
Sol-gel preparation of silica glass.
Bulletin of Materials Science, 15 (5).
pp. 453-457.
ISSN 0250-4707
Abstract
This paper is a preliminary report on the preparation of silica glass containing very low amount of hydroxyl by the sol-gel processing technique. Gels were prepared from optimized amounts of tetraethyl orthosilicate, fumed silica and water. Acids and bases in small quantities were added for catalysing hydrolysis and adjusting the pH. Dried gels were heated up to 1400-degrees-C in various atmospheres to obtain transparent silica glass of the required density and very low (< 5 ppm) hydroxyl content.
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