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dc.contributor.authorBraunger, M. L. [UNESP]
dc.contributor.authorEscanhoela, C. A.
dc.contributor.authorFier, I. [UNESP]
dc.contributor.authorWalmsley, L. [UNESP]
dc.contributor.authorZiemath, E. C. [UNESP]
dc.identifier.citationJournal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 358, n. 21, p. 2855-2861, 2012.
dc.description.abstractThe effects of substituting Si by M4+ cations in soda-lime silica glasses were analyzed by impedance spectroscopy in the frequency range of 1 Hz-1 MHz. The glass composition was (mol%) 22Na(2)O center dot 8CaO center dot 65SiO(2)center dot 5MO(2), M = Si, Ti, Ge, Zr, Sn, and Ce. Although the Na+ concentration in the glasses is constant, the Zr-containing glass exhibits the highest dc conductivity and the lowest activation energy, while the Ce-containing glass exhibits the lowest conductivity. The activation energies obtained experimentally agree with those obtained by a theoretical equation proposed by Anderson and Stuart. The differences in electrical conductivity presented by the several M-containing glasses are attributed to the effect that the M4+ ion has on the mobility of the diffusing Na+ ion. (C) 2012 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Non-Crystalline Solids
dc.sourceWeb of Science
dc.subjectSilicate glassen
dc.subjectImpedance spectroscopyen
dc.subjectElectrical conductivityen
dc.titleElectrical conductivity of silicate glasses with tetravalent cations substituting Sien
dcterms.rightsHolderElsevier B.V.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.description.affiliationUNESP, Dept Fis, IGCE, Rio Claro, SP, Brazil
dc.description.affiliationUNESP, Dept & Fis Quim Biol, FCT, Presidente Prudente, SP, Brazil
dc.description.affiliationUniv São Paulo, São Carlos, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Fis, IGCE, Rio Claro, SP, Brazil
dc.description.affiliationUnespUNESP, Dept & Fis Quim Biol, FCT, Presidente Prudente, SP, Brazil
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dc.description.sponsorshipIdFAPESP: 08/07304-7
dc.description.sponsorshipIdFAPESP: 08/07238-4
dc.description.sponsorshipIdFAPESP: 05/04397-6
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt
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