Inversion in the temperature coefficient of the optical path length close to the glass transition temperature in tellurite glasses

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dc.contributor.authorLima, S. M.
dc.contributor.authorAndrade, L. H. C.
dc.contributor.authorFalcao, E. A.
dc.contributor.authorSteimacher, A.
dc.contributor.authorAstrath, N. G. C.
dc.contributor.authorMedina, A. N.
dc.contributor.authorBaesso, M. L.
dc.contributor.authorOliveira, R. C. [UNESP]
dc.contributor.authorMoraes, João Carlos Silos [UNESP]
dc.contributor.authorYukimitu, K. [UNESP]
dc.contributor.authorAraujo, E. B. [UNESP]
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:52Z
dc.date.available2014-05-20T13:29:52Z
dc.date.issued2009-06-22
dc.description.abstractIn this study, thermal lens spectrometry was applied to determine the thermo-optical properties of fragile tellurite glasses as a function of temperature, close to the glass transition region. The results showed an inversion from positive to negative values in the temperature coefficient of the optical path length occurring after the glass transition temperature, which is the region where structural changes from the TeO(4) trigonal bipyramidal unit to a TeO(3) trigonal pyramid containing nonbridging oxygen take place. In addition, the thermal diffusivity values as a function of temperature exhibited behaviors that were related to thermodynamic and kinetic structural changes in the glass.en
dc.description.affiliationUniv Estadual Mato Grosso Sul, Grp Espectroscopia Opt & Fototerm, BR-79804970 Dourados, MS, Brazil
dc.description.affiliationUniv Estadual Maringa, Grp Estudos Efeitos Fototerm, BR-87020900 Maringa, Parana, Brazil
dc.description.affiliationUniv Estadual Paulista, Grp Vidros & Ceram, BR-15385000 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Grp Vidros & Ceram, BR-15385000 São Paulo, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipPROPP-UEMS
dc.description.sponsorshipAraucaria Foundation
dc.format.extent3
dc.identifierhttp://dx.doi.org/10.1063/1.3155210
dc.identifier.citationApplied Physics Letters. Melville: Amer Inst Physics, v. 94, n. 25, p. 3, 2009.
dc.identifier.doi10.1063/1.3155210
dc.identifier.fileWOS000267431700021.pdf
dc.identifier.issn0003-6951
dc.identifier.lattes8507741729691974
dc.identifier.lattes6725982228402054
dc.identifier.urihttp://hdl.handle.net/11449/10132
dc.identifier.wosWOS:000267431700021
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relation.ispartofApplied Physics Letters
dc.relation.ispartofjcr3.495
dc.relation.ispartofsjr1,382
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectglass transitionen
dc.subjectlithium compoundsen
dc.subjectoptical glassen
dc.subjecttellurium compoundsen
dc.subjectthermal diffusivityen
dc.subjectthermal lensingen
dc.subjectthermodynamic propertiesen
dc.subjecttitanium compoundsen
dc.titleInversion in the temperature coefficient of the optical path length close to the glass transition temperature in tellurite glassesen
dc.typeArtigo
dcterms.licensehttp://www.aip.org/pubservs/web_posting_guidelines.html
dcterms.rightsHolderAmer Inst Physics
unesp.author.lattes8507741729691974
unesp.author.lattes6725982228402054
unesp.author.orcid0000-0002-3778-1723[3]
unesp.author.orcid0000-0002-7043-3157[9]
unesp.author.orcid0000-0001-6017-2582[7]
unesp.author.orcid0000-0002-1658-8043[5]
unesp.author.orcid0000-0002-6347-0160[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Física e Química - FEIS