Effect of Fluxing Additives in Iron-rich Frits and Glazes in the Fe2O3–SiO2–CaO–Al2O3 System
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Otros documentos de la autoría: Rosales Sosa, Gustavo A.; Lira Olivares, Joaquín; Poirier, Thierry; Carda Castelló, Juan Bautista
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Título
Effect of Fluxing Additives in Iron-rich Frits and Glazes in the Fe2O3–SiO2–CaO–Al2O3 SystemAutoría
Fecha de publicación
2013Editor
Expert Fachmedien GmbHISSN
0020-5214Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.interceram-review.info/Palabras clave / Materias
Resumen
Glasses in the Fe2O3–SiO2–CaO system are potential candidates for many
technological applications due to their ferrimagnetic and semiconductive
properties, which have been extensively studied; in this sense, the ... [+]
Glasses in the Fe2O3–SiO2–CaO system are potential candidates for many
technological applications due to their ferrimagnetic and semiconductive
properties, which have been extensively studied; in this sense, the effect
of adding different melting additives like Li2O, B2O3, in this glass system on
frits and glazes with 30–40 mass-% of Fe2O3 was studied. Ceramic frits
were melted at different temperatures with subsequent cooling in water.
Samples were characterized by X-ray fluorescence (XRF), X-ray diffraction
(XRD), scanning electron microscopy (SEM), differential thermal analysis and thermogravimetry (DTA, TG) and by heating microscopy. Finally, frits
were applied as glazes on ceramic tiles to evaluate their capacity to adapt
to the tile productive process. The frits showed low to high homogeneity
(depending on the fusion temperature) and oxidation phenomena. High
temperature fusion led to the crystallization of magnetite during cooling.
Glaze porosity was observed after heat treatment with the presence of
anorthite and hematite as crystalline phases in glazes. [-]
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Interceram, 62, 2, p. 126-130Derechos de acceso
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