Glass crystallization by ion exchange: formation of NaNbO3 in thick films at the glass surface

Experimental results of studying a Li-Na high-temperature ion exchange in a Li-Nb silicate glass are presented. Ion exchange brings forth glass crystallization. The crystals precipitating in the diffused layers and identified by XRD analysis are orthorhombic (and/or quasi-cubic) NaNbO3. Depending on...

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Published inJournal of non-crystalline solids Vol. 283; no. 1-3; pp. 114 - 118
Main Authors Karapetyan, G.O, Loboda, V.V, Tagantsev, D.K
Format Journal Article
LanguageEnglish
Published 01.05.2001
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Summary:Experimental results of studying a Li-Na high-temperature ion exchange in a Li-Nb silicate glass are presented. Ion exchange brings forth glass crystallization. The crystals precipitating in the diffused layers and identified by XRD analysis are orthorhombic (and/or quasi-cubic) NaNbO3. Depending on the temperature-time conditions of the ion-exchange processing, surface glass-ceramic films of different thicknesses have been formed. The phenomenon and conditions that produce it are discussed in terms of the theory of phase equilibria in liquid solutions. This work completes the topic concerning the possibility to control any phase transformations in glasses by the ion-exchange technique. 9 refs.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0022-3093
DOI:10.1016/S0022-3093(01)00417-3