期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 29, 期 9, 页码 1571-1578出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2008.10.010
关键词
Fast-firing; Glass-ceramic; Zircon-free opaque wall tile glaze
资金
- State Planning Organisation of Turkiye [2004K120270]
- TUBITAK (Science, Technology and Research Association of Turkiye)
- Supporting Programme of Industrial Research and Development Projects (TEYDEB) [3060236]
Wall tile glazes with a smooth surface texture, high glossiness, and whiteness are usually based on zirconium containing frits. However, these frits are quite expensive and therefore, there have recently been certain attempts to lower the production cost such as taking suitable glass-ceramic glaze systems into an account. With the present work, the frit-based glaze compositions belonging to the K2O-MgO-CaO-ZnO-Al2O3-B2O3-SiO2 glass-ceramic system were studied to prepare newly synthesized wall tile glazes for industrial single fast-firing. The design of a glass-ceramic glaze for this type of tiles should ensure that the selected frit precursor is technically and commercially compatible with the manufacturing conditions generally used in the production of glazed ceramic wall tiles. The aim of the study is to develop zircon-free, frit-based, glossy opaque glass-ceramic glazes for wall tiles by optimizing the CaO/MgO and adjusting the Al2O3/alkali ratios in the starting frit compositions. Frit production, glaze preparation, application, and single fast-firing of wall tiles were, first of all, conducted under laboratory working conditions and then, successful recipes were adapted to the relevant industry. The frit crystallization capability and crystallization temperature range were determined by differential thermal analysis (DTA). Thermal expansion coefficient values of glazes were determined by a dilatometer. Characterization of single fast-fired glass-ceramic glazes was made by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) techniques. Colour and gloss analyses of the final glazes were measured with a spectrophotometer and a gloss meter, respectively. (C) 2008 Elsevier Ltd. All rights reserved.
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