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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ufba/578

Title: Correlation between conductivity and free volume in rubidium and cesium silicate glasses
Authors: Nascimento, Marcio Luis Ferreira
Keywords: Vidro;Condutividade;Anderson-Stuart;Condução Ionica;Modelo
Issue Date: 1-Jan-2007
Abstract: Following recent finding published in this journal it is shown that using conductivity and molar volume in binary rubidium and cesium silicate glasses, both measured at room temperature, a common cubic scaling relation was found between them due to increase in alkali content. The drastic drop in conductivity up to 15 orders of magnitude for so many ion-conducting binary alkali silicate glasses (and in wide composition range) is then mainly caused by the structure and the ion content. In particular, it is suggested that the glass network expansion, which is related to the available free volume, is a parameter that could explain the increase in ionic conductivity for these binary systems.
URI: http://www.repositorio.ufba.br/ri/handle/ufba/578
ISSN: 01039733
Appears in Collections:Artigos Publicados em Periódicos (PEI)

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