Effect of ZrSiO4/ZnO Ratio on the Properties of Opaque Glazes Used in -Ceramic Sanitary-ware Industry

Benkacem, Sa.; Boudeghdegh, K.; Zehani, F.; Belhocine, Y.

doi:10.22068/ijmse.17.2.92

Volume 17, Issue 2 (June 2020) IJMSE 2020, 17(2): 104-115 | Back to browse issues page

‎ 10.22068/ijmse.17.2.92

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Benkacem S, Boudeghdegh K, Zehani F, Belhocine Y. Effect of ZrSiO4/ZnO Ratio on the Properties of Opaque Glazes Used in -Ceramic Sanitary-ware Industry. IJMSE 2020; 17 (2) :104-115
URL: http://ijmse.iust.ac.ir/article-1-1682-en.html

Effect of ZrSiO4/ZnO Ratio on the Properties of Opaque Glazes Used in -Ceramic Sanitary-ware Industry

Sa. Benkacem

, K. Boudeghdegh

, F. Zehani

, Y. Belhocine

Abstract: (12061 Views)

This paper focuses on the effect of ZrSiO₄/ZnO ratio on the properties of the glaze to be used on ceramic sanitary-ware. Structural and morphological characterization of these glazed ceramics were identified by XRD, SEM, FTIR and Raman Spectroscopy. Furthermore, thermal properties were determined by DTA and TG techniques. Besides, flexural strength, Vickers Microhardness, whiteness and chemical resistance were investigated experimentally. XRD analysis showed that the zircon and quartz were the crystalline phases, zircon was also precipitated into the glaze layer during firing. It was found that an increase of the ZrSiO₄/ZnO ratio part weights from 3.85 to 67, causes an increase in the zircon crystallite particle size from 203.90 to 288.86 Å. From DTA, it was observed that by increasing ZrSiO₄/ZnO ratio, the crystallization temperature of zircon decreases. The glaze exhibits the highest whiteness value when the ratio of ZrSiO₄/ZnO becomes 12.60.

Keywords: Glaze, Ceramic sanitary-ware, ZrSiO4/ZnO ratio, Vickers Microhardness, Whiteness.