Microstructure and Phase Analysis of Ethyl Silicate-Bonded Alumina-Zircon Refractories

Microstructure and Phase Analysis of Ethyl Silicate-Bonded Alumina-Zircon Refractories Alumina-zircon refractories are prepared using an aqueous ethyl silicate solution as the gel-polymerized bond. Test specimens are heat-treated by reaction sintering at different temperature (1450 – 1600°C) and holding times (1 – 4 h) to yield new refractory phases zirconium dioxide and mullite. The specimens are tested for strength, porosity, sintering shrinkage, apparent density, and chemical and phase composition using x-ray diffractometry and electron scanning microscopy. Reactive sintering is shown to be a effective route towards obtaining ethyl-silicate-bonded alumina-zircon refractories with tailored microscopic and physical properties. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Microstructure and Phase Analysis of Ethyl Silicate-Bonded Alumina-Zircon Refractories

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Publisher
Kluwer Academic Publishers-Consultants Bureau
Copyright
Copyright © 2005 by Springer Science+Business Media, Inc.
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-005-0088-0
Publisher site
See Article on Publisher Site

Abstract

Alumina-zircon refractories are prepared using an aqueous ethyl silicate solution as the gel-polymerized bond. Test specimens are heat-treated by reaction sintering at different temperature (1450 – 1600°C) and holding times (1 – 4 h) to yield new refractory phases zirconium dioxide and mullite. The specimens are tested for strength, porosity, sintering shrinkage, apparent density, and chemical and phase composition using x-ray diffractometry and electron scanning microscopy. Reactive sintering is shown to be a effective route towards obtaining ethyl-silicate-bonded alumina-zircon refractories with tailored microscopic and physical properties.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 10, 2005

References

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