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Title: Effects of alumina and white fused alumina addition on technological properties of transparent floor tile glazes
Authors: Bayer Öztürk, Zahide
Yıldız, Betül
Kara, Alpagut
Keywords: alpha-alumina
White fused alumina (WFA)
Transparent floor tile glaze
Technological properties
Issue Date: 2020
Publisher: Springer
Abstract: In ceramic tile manufacturing,alpha-Al(2)O(3)is the main type of alumina used in ceramic body and glaze formulations. It acts as an opacifier in porcelain tile bodies and as a matting agent in glazes. White fused alumina (WFA) is produced by fusing calcined alumina in an electric arc furnace under carefully controlled conditions. It is generally preferred in ceramic floor tile glazes in order to increase abrasion resistance. The aim of this study was to establish a better understanding of how alumina and WFA addition affects the thermal behavior, microstructural evolution and aesthetic properties of transparent floor tile glazes. The results showed that both alumina and WFA increased the sintering and melting temperatures of the standard commercial glaze. Corund was detected in the main phase with WFA addition in tile glazes. There were no other crystalline phases formed since WFA did not react with glassy phase. This behavior can be attributed to higher refractoriness of fused alumina. Smoother surface and homogenous structure were observed in the glazes with WFA addition. However, anorthite and corund phases were detected in the glazes with alumina addition. High crystallization glazes with rough surfaces were observed in these glazes. Alumina was found to be more effective to increase opacity and reducing glossiness compared WFA addition.
ISSN: 1388-6150
Appears in Collections:Fizik Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu

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