De, Goutam and Kundu, Debtosh and Karmakar, Basudeb and Ganguli, Dibyendu (1993) Hydroxyl-free clear silica glass by sol-gel processing. Materials Letters, 16 (4). pp. 231-235. ISSN 0167-577X

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Hydroxyl (OH)-free clear silica glass bodies (plates, discs, rods and small tubes) were prepared by the sol-gel process. The method involved preparation of silica gel shapes via a mixed sol obtained from tetraethyl orthosilicate, fumed silica and acidulated water. The gels were then heat treated in different atmospheres (oxygen, vacuum, carbon tetrachloride and helium) up to 1500-degrees-C for obtaining fully dense clear silica glass bodies. Infrared spectra of the glasses prepared at 1500-degrees-C showed complete absence of hydroxyl groups. The average surface hydroxyl coverage of the gels and the residual hydroxyl content of the glass bodies were determined.

Item Type: Article
Subjects: Glass
Divisions: Sol Gel
Depositing User: Bidhan Chaudhuri
Date Deposited: 20 Aug 2013 12:55
Last Modified: 20 Aug 2013 12:55

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