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Published in: Journal of Sol-Gel Science and Technology 1/2011

01-04-2011 | Original Paper

Preparation and characterization of diphasic sol-gel derived unsupported mullite membranes

Authors: Berna Topuz, Muhsin Çiftçioğlu

Published in: Journal of Sol-Gel Science and Technology | Issue 1/2011

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Abstract

Diphasic gels prepared by mixing freshly prepared polymeric silica and polymeric boehmite sols through a modified Al-alkoxide route in mullite compositions led to the crystallization of mullite upon heat treatment at 775 °C. Mullite formation was observed at a 100 °C higher temperature when diphasic gels were formed by mixing aged polymeric sols containing about 2 nm in diameter boehmite species. These relatively low mullite formation temperatures were attributed to the nanoscale sizes of the polymeric species of the two amorphous phases present in the diphasic gels.

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Metadata
Title
Preparation and characterization of diphasic sol-gel derived unsupported mullite membranes
Authors
Berna Topuz
Muhsin Çiftçioğlu
Publication date
01-04-2011
Publisher
Springer US
Published in
Journal of Sol-Gel Science and Technology / Issue 1/2011
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-010-2347-x

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