Correlation between conductivity and free volume in rubidium and cesium silicate glasses



Título del documento: Correlation between conductivity and free volume in rubidium and cesium silicate glasses
Revista: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000408635
ISSN: 0103-9733
Autores: 1
Instituciones: 1Universidade Federal de Sao Carlos, Departamento de Engenharia de Materiais, Sao Carlos, Sao Paulo. Brasil
Año:
Periodo: Jun
Volumen: 37
Número: 2A
Paginación: 429-434
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés It is shown that conductivity and molar volume in binary rubidium and cesium silicate glasses, both measured at room temperature, obey a common cubic scaling relation 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 (in wide composition range) is 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
Disciplinas: Física y astronomía
Palabras clave: Física,
Física de materia condensada,
Estado sólido,
Conductividad iónica
Keyword: Physics and astronomy,
Condensed matter physics,
Physics,
Solid state,
Ionic conductivity
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