Effects of Metallic Additions on Fired Ceramic Materials

Werner Schoenwelski, Jens Sperber, Stephan Becker

STEULER-KCH GmbH, 56203 Höhr-Grenzhausen/Germany

Revision

Volume 10, Issue 4, Pages 67 - 71

Abstract

This paper describes the effect of metal powder addition to a standard fred ceramic kiln-furniture product. Different amounts and combinations of aluminium and silicon are tested. Small additions have the metals completely oxidised forming secondary mullite or corundum. Higher amounts and suitable combinations lead to the formation of SiAlONs in the core. In any case physical properties could be kept or even improved, especially cold crushing strength, even if the fring temperature is reduced compared to standard.

Keywords

fred ceramics, metal addition

References

[1] Routschka, G.; Wuthnow, H. (Eds.): Praxishandbuch Feuerfeste Werkstoffe, chapter 4.2.2 Magnesiakohlenstoffsteine (MagCarbon Bricks), 5th ed. Essen, 2011, 112 [2] Routschka, G.; Wuthnow, H. (Eds.): Praxishandbuch Feuerfeste Werkstoffe, chapter 5.3.1 Feuerbetone (Refractory Castables), 5 ed. Essen, 2011, 152 [3] Wikipedia article „Reaktionsbinden“ (German) and secondary literature cited there

Copyright

Göller Verlag GmbH