Estudio del efecto fotocrómico que presentan los vidriados opacificados por esfena
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Altres documents de l'autoria: Bou Solsona, Encarnación; Orts Tarí, María José; Moreda, C.; Gozalbo Nebot, Ana; Gimeno, R.; Sánchez, A.
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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Títol
Estudio del efecto fotocrómico que presentan los vidriados opacificados por esfenaAutoria
Data de publicació
2012-03Editor
Sociedad Española de Cerámica y VidrioISSN
0366-3175; 2173-0431Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://ceramicayvidrio.revistas.csic.es/index.php/ceramicayvidrio/article/view/1 ...Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
White glazes opacified by sphene, based on the system SiO2-CaO-TiO2, are an alternative to the glazes in which the opacifying
phase is zircon. However, it has been observed that this type of glaze displays photochromism ... [+]
White glazes opacified by sphene, based on the system SiO2-CaO-TiO2, are an alternative to the glazes in which the opacifying
phase is zircon. However, it has been observed that this type of glaze displays photochromism (reversible change of colour
after exposure to a light source), involving the appearance of a yellowish shade after the glaze has been subjected to sunlight
for several hours, which then disappears after a few days. This effect has led to limited use of this type of glaze.
In this study, a method of quantifying the photochromic effect by means of a UV light source is established. The microstructural
characterisation of glazes with a pronounced tendency to display a photochromic effect has allowed the possible causes of the
photochromic effect to be determined. Finally, a series of tests have been conducted that show that the photochromic effect is
related to the impurities present in the glaze, as well as to the type and quantity of crystalline phases contained in the glaze [-]
Publicat a
Boletín de la Sociedad Española de Cerámica y Vidrio, 2012, març/abril, Vol. 51, núm. 2Drets d'accés
© Sociedad Española de Cerámica y Vidrio
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info:eu-repo/semantics/openAccess
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info:eu-repo/semantics/openAccess
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