In order to verify the possibility to use new glass ceramic materials as glazes for floor tiles, the devetrification process of a formulation belonging to the wollastonite stability field in the CaO-SiO2-ZrO2 system was investigated by DTA, XRD and SEM techniques. The investigated system shows a high tendency toward crystallisation, that brings to the separation, also at very high heating/cooling speed, of CaO·SiO2 (wollastonite) and 2CaO·ZrO2·4SiO2 (calcium and zirconium silicate) as main crystalline phases. Industrial tests demonstrate how the formulation can be used as prevalent component in the tile glaze preparation.
Glass ceramics belongings to the CaO-SiO2-ZrO2 system as tiles glazes components / Baldi di, G.; Barbieri, L.; Frassinelli, L.; Generali, E.; Leonelli, C.; Manfredini, T.; Pellacani, G. C.; Siligardi, C.; Svicher, E. C.. - In: CERAMURGIA. - ISSN 0045-6152. - 25:3(1995), pp. 139-142.
Glass ceramics belongings to the CaO-SiO2-ZrO2 system as tiles glazes components
Barbieri L.;Frassinelli L.;Generali E.;Leonelli C.;Manfredini T.;Pellacani G. C.;Siligardi C.;
1995
Abstract
In order to verify the possibility to use new glass ceramic materials as glazes for floor tiles, the devetrification process of a formulation belonging to the wollastonite stability field in the CaO-SiO2-ZrO2 system was investigated by DTA, XRD and SEM techniques. The investigated system shows a high tendency toward crystallisation, that brings to the separation, also at very high heating/cooling speed, of CaO·SiO2 (wollastonite) and 2CaO·ZrO2·4SiO2 (calcium and zirconium silicate) as main crystalline phases. Industrial tests demonstrate how the formulation can be used as prevalent component in the tile glaze preparation.
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CERAMURGIA 1994 n6 pp267-270.pdf
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