Cement-free spinel-based refractory materials

Cement-free spinel-based refractory materials Channel induction furnaces can operate at temperatures as high as 2000 °C, which requires the use of high-temperature refractory materials resistant to corrosion. CaO, a conventional component of the corundum-containing refractory castables, produces a degrading effect on high-temperature properties; for this reason, low-and ultralow cement materials fail to meet the needed requirements. Therefore a cement-free refractory of the DALCAST series in the Al2O3-MgO binary system based on an Al2O3 fully hydratable binder has been developed. Physical properties (strength and hardening behavior) of a standard low-cement castable and a newly developed product based on the results of their practical use in channel induction furnaces are compared and discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Cement-free spinel-based refractory materials

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Publisher
Springer Journals
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/s11148-006-0020-2
Publisher site
See Article on Publisher Site

Abstract

Channel induction furnaces can operate at temperatures as high as 2000 °C, which requires the use of high-temperature refractory materials resistant to corrosion. CaO, a conventional component of the corundum-containing refractory castables, produces a degrading effect on high-temperature properties; for this reason, low-and ultralow cement materials fail to meet the needed requirements. Therefore a cement-free refractory of the DALCAST series in the Al2O3-MgO binary system based on an Al2O3 fully hydratable binder has been developed. Physical properties (strength and hardening behavior) of a standard low-cement castable and a newly developed product based on the results of their practical use in channel induction furnaces are compared and discussed.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Apr 12, 2006

References

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