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Journal of Engineering
Volume 2013 (2013), Article ID 972019, 7 pages
http://dx.doi.org/10.1155/2013/972019
Research Article

Comparative Study of the Thermal Shock Resistance of an Industrial Tableware Porcelain

Laboratory of Mechanics, Materials and Processes, Higher School of Science and Technology of Tunis, University of Tunis, 5 Avenue Taha Hussein, Montfleury 1008, Tunisia

Received 11 January 2013; Accepted 22 March 2013

Academic Editor: Zhong-Yong Yuan

Copyright © 2013 Habib Sahlaoui et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The effect of the glazed layer and firing conditions (temperature and duration) on the thermal shocks behavior of tableware porcelains has been studied. Two types of glazed layers and three firing conditions, used industrially in the commercial porcelains manufacture, are used in this investigation. Repeated thermal shock tests showed that the glazed layer with higher alumina/silica ratio is more resistant to thermal shocks and that the slow firing cycle, even at a relatively low temperature, is very beneficial for the thermal shock resistance of the porcelain matrix. Three-point bending tests showed that the crazing phenomenon, which affects the glazed layers as well as the porcelain matrix, does not affect significantly the mechanical resistance of these materials.