Influence of SiO2/Al2O3 Molar Ratio on Phase Composition and Surfaces Quality of Aluminum Silicate Sanitary Glazes in the SiO2-Al2O3-CaO-Na2O System

Archives of Metallurgy and Materials

Partyka J.¹  Sitarz M.²  Leśniak M.² 

[1] AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Ceramics and Refractory Materials, Al. A. Mickiewicz 30, 30-059 Kraków, Poland;AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Silicate Chemistry and Macromolecular Compounds, Al. A. Mickiewicz 30, 30-059 Kraków, Poland;

关键词: Glazes;    SiO2/Al2O3 molar ratio;    microstructure;    surface;    roughness;   

DOI  :  10.1515/amm-2016-0279

来源: DOAJ

【 摘 要 】

This paper presents the results of research on aluminum silicate sanitary glazes in the SiO2-Al2O3-CaO-Na2O system with different SiO2/Al2O3 molar ratio. XRD, SEM-EDS and FITR measurement indicated that SiO2/Al2O3 molar ratio has a significant impact on the phase composition of the obtained glazes. Glass-ceramic glazes were obtained that consisted of both the glass phase and pseudowollastonite (Ca3[SiO3]3) or anorthite (Ca[Al2Si2O8]) crystals. Subsequently, the influence of phase composition on surface quality (roughness) was examined for the obtained samples. On the basis of the conducted examination of glaze surface roughness was observed that glazes of extreme SiO2/Al2O3 molar ratio are characterized with greatest surface roughness when compared to other glazes.

【 授权许可】

Unknown