Change in the phase composition of corundum-mullite-cordierite refractories under heat treatment

Change in the phase composition of corundum-mullite-cordierite refractories under heat treatment An analysis of the change in the phase composition of corundum-mullite-cordierite refractories cooled according to various procedures after heat treatment for 2 h at temperatures of 1673, 1723, and 1773 K, which correspond to the subsolidus region of the diagram of MgO−Al2O3−SiO2 with different combinations of coexisting phases. The possibility of transforming the phase composition of such materials by reversible solid-phase reactions is shown. The reasons for and distinctive features of the deviations of the actual phase composition from the theoretical one are considered. Theoretical and experimental data on the high-alumina region of the phase diagram of MgO−Al2O3−SiO2 are generalized. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Change in the phase composition of corundum-mullite-cordierite refractories under heat treatment

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Publisher
Springer US
Copyright
Copyright © 1998 by Plenum Publishing Corporation
Subject
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/BF02767899
Publisher site
See Article on Publisher Site

Abstract

An analysis of the change in the phase composition of corundum-mullite-cordierite refractories cooled according to various procedures after heat treatment for 2 h at temperatures of 1673, 1723, and 1773 K, which correspond to the subsolidus region of the diagram of MgO−Al2O3−SiO2 with different combinations of coexisting phases. The possibility of transforming the phase composition of such materials by reversible solid-phase reactions is shown. The reasons for and distinctive features of the deviations of the actual phase composition from the theoretical one are considered. Theoretical and experimental data on the high-alumina region of the phase diagram of MgO−Al2O3−SiO2 are generalized.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 26, 2007

References

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