Development of blue ceramic dyes from cobalt phosphates
Impacto
Scholar |
Otros documentos de la autoría: Meseguer Costa, Sergio; Tena, M. A.; Gargori, Carina; Galindo Llorach, Roberto; Badenes March, José Antonio; Llusar, Mario; Monrós, Guillermo
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http://dx.doi.org/10.1016/j.ceramint.2007.04.008 |
Metadatos
Título
Development of blue ceramic dyes from cobalt phosphatesAutoría
Fecha de publicación
2008Editor
ElsevierISSN
2728842Cita bibliográfica
Ceramics International, 34, 6, p. 1431-1438Tipo de documento
info:eu-repo/semantics/articlePalabras clave / Materias
Resumen
In this study the development of blue ceramic dyes from compositions based on phosphate structures have been investigated. The replacement of cobalt by copper or iron to minimize the Co content have been considered. ... [+]
In this study the development of blue ceramic dyes from compositions based on phosphate structures have been investigated. The replacement of cobalt by copper or iron to minimize the Co content have been considered. MFeO(PO<sub>4</sub>) (M = Co, Cu) solid solutions have been obtained with Co<sub>1-x</sub>Cu<sub>x</sub>FeOPO<sub>4</sub> (0 ≤ x ≤ 1) compositions prepared from gels and fired at 1000 °C/2 h. Co<sub>1-x</sub>Cu<sub>x</sub>FeOPO<sub>4</sub> compositions are not indicated to minimize the Co content in ceramic dyes because they decompose in glazed samples and pinhole defect is obtained. From FeCoOPO<sub>4</sub>-2FePO<sub>4</sub> compositions, Co<sub>3</sub>Fe<sub>4</sub>(PO<sub>4</sub>)<sub>6</sub> structure introduces the Co<sup>2+</sup> ions into glassy matrix and suitable blue materials are obtained. In the conditions of this study, optimal cobalt amount is about 10 wt% Co from Co<sub>1-x</sub>Fe<sub>1+x</sub>O<sub>1-x</sub>(PO<sub>4</sub>)<sub>1+x</sub> (x ≈ 0.6) compositions. © 2007 Elsevier Ltd and Techna Group S.r.l. [-]
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