Three frits conceived for high porosity single firing tiles containing different amounts of cerium oxide and their glazes were investigated. The glazes obtained under industrial firing were studied using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy dispersion spectroscopy (EDS). The mechanism of the lustre effect on the surface was explained. The results indicate that the glaze presents iridescent colours on the surface, mainly associated to the formation of a very thin layer of CeO2 crystals. Moreover, the CeO2 crystals present a preferential orientation and different dimensions.
Lustre Ce-glazes: scientific aspects of materials having high aesthetic properties / Siligardi, Cristina; Montecchi, Monica; Pasquali, Luca; Claudio, Ansaloni. - ELETTRONICO. - 2:(2009), pp. 716-719. (Intervento presentato al convegno 11th International Conference and Exhibition of the European Ceramic Society 2009 tenutosi a Krakow, pol nel 21-25 giugno 2009).
Lustre Ce-glazes: scientific aspects of materials having high aesthetic properties
SILIGARDI, Cristina;MONTECCHI, Monica;PASQUALI, Luca;
2009
Abstract
Three frits conceived for high porosity single firing tiles containing different amounts of cerium oxide and their glazes were investigated. The glazes obtained under industrial firing were studied using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy dispersion spectroscopy (EDS). The mechanism of the lustre effect on the surface was explained. The results indicate that the glaze presents iridescent colours on the surface, mainly associated to the formation of a very thin layer of CeO2 crystals. Moreover, the CeO2 crystals present a preferential orientation and different dimensions.
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