期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 26, 期 16, 页码 3809-3812出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2005.12.016
关键词
glass ceramic; glaze; tiles
Simultaneous improvement of surface hardness and glossiness of floor tile glaze, without changing its firing temperature, was the main purpose of the present paper. Thus, various glazes in the system of CaO-MgO-SiO2-Al2O3-ZrO2 were prepared and their crystallization behaviors within a fast firing cycle were investigated. With increasing amounts of calcium and magnesium oxides to base glass, the optimum glass-ceramic glaze was obtained. The results showed that with increasing of CaO and MgO part weights in frit, the crystallization peak temperature was gradually decreased and the intensities of diopside and zirconium silicate were increased. The comparison of micro hardness for the optimum glass ceramic glaze derived in this work with a traditional one used in floor tile industries indicates an improvement of 21%. It was found that the glaze hardness not only depend on the amount and type of crystalline phases, but also on the residual glass composition. Furthermore, it was observed that the glaze micro hardness is only slightly affected by thermal expansion mismatch of body and glaze. (c) 2006 Elsevier Ltd. All rights reserved.
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