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PHYSICAL PROPERTIES of TELLURITE GLASSES PREPARED UNDER DIFFERENT THERMAL HISTORIES

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dc.contributor.authorAraujo, E. B. [UNESP]
dc.contributor.authorIdalgo, E. [UNESP]
dc.contributor.authorMoraes, A. P. A.
dc.contributor.authorSouza Filho, A. G.
dc.contributor.authorMendes Filho, J.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal do Ceará (UFC)
dc.date.accessioned2014-05-20T13:29:49Z
dc.date.available2014-05-20T13:29:49Z
dc.date.issued2010-03-10
dc.description.abstractTellurite glasses were prepared with identical 20Li(2)O-80TeO(2) nominal compositions but with different thermal histories. Differential scanning calorimetry (DSC), X-ray diffraction (XRD) and Raman spectroscopy techniques were used to understand the effects of the thermal histories on the thermal and structural properties of these glasses. It was observed that investigated properties depend strongly on the thermal histories. DSC results suggested that annealing immediately after quenching at temperatures around the glass transition temperature (T(g)) and for longer times is favorable for producing local ordered regions in the glass withoug necessarily increasing the number of nuclei. XRD results revealed the crystallization of the gamma-TeO(2), alpha-TeO(2) and alpha-Li(2)Te(2)O(5) phases in both studied glasses. Raman spectroscopy revealed the metastable character of the gamma-TeO(2) crystalline phase, while the alpha-TeO(2) and alpha-Li(2)Te(2)O(5) crystalline phases persisted up to the final stages of the in-situ crystallization.en
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUniversidade Federal do Ceará (UFC), Dept Fis, BR-60455900 Fortaleza, Ceara, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 301382/2006-9
dc.format.extent527-537
dc.identifierhttp://dx.doi.org/10.1142/S0217984910022585
dc.identifier.citationModern Physics Letters B. Singapore: World Scientific Publ Co Pte Ltd, v. 24, n. 6, p. 527-537, 2010.
dc.identifier.doi10.1142/S0217984910022585
dc.identifier.issn0217-9849
dc.identifier.lattes6725982228402054
dc.identifier.urihttp://hdl.handle.net/11449/10099
dc.identifier.wosWOS:000275712900003
dc.language.isoeng
dc.publisherWorld Scientific Publ Co Pte Ltd
dc.relation.ispartofModern Physics Letters B
dc.relation.ispartofjcr0.731
dc.relation.ispartofsjr0,226
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectTelluriteen
dc.subjectRaman spectroscopyen
dc.subjectX-ray diffractionen
dc.titlePHYSICAL PROPERTIES of TELLURITE GLASSES PREPARED UNDER DIFFERENT THERMAL HISTORIESen
dc.typeArtigo
dcterms.licensehttp://www.worldscientific.com/page/authors/author-rights
dcterms.rightsHolderWorld Scientific Publ Co Pte Ltd
dspace.entity.typePublication
unesp.author.lattes6725982228402054
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia