DSC studies on crystallization mechanisms of tellurite glasses

dc.contributor.authorYukimitu, K.
dc.contributor.authorOliveira, R. C.
dc.contributor.authorAraujo, E. B.
dc.contributor.authorMoraes, João Carlos Silos [UNESP]
dc.contributor.authorAvanci, L. H.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T13:29:31Z
dc.date.available2014-05-20T13:29:31Z
dc.date.issued2005-02-20
dc.description.abstractThe purpose of this work is to study the 20Li(2)O-80TeO(2) glass using the differential scanning calorimetry (DSC) and X-ray diffraction (XRD) techniques in order to understand the crystallization kinetics on this glass matrix. To study the glass by DSC, screened samples with different particle sizes to resolve the observed asymmetrical crystallization peak were used. DSC curves for particles smaller than 38 mum in size show two distinct crystallization peaks, associated to distinct phase transformation in this glass, leading to activation energies at 301 and 488 kJ mol(-1). XRD analysis reveals that the first crystallization peak is attributed to TeO2 crystalline phase while the second one to the alpha-TeO3 and an unidentified phase.(C) 2004 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Fis, Grp Vidros & Ceram, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUniv São Paulo, Inst Fis, Dept Fis Aplicada, BR-05508900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Fis, Grp Vidros & Ceram, BR-15385000 Ilha Solteira, SP, Brazil
dc.format.extent157-161
dc.identifierhttp://dx.doi.org/10.1016/j.tca.2004.07.016
dc.identifier.citationThermochimica Acta. Amsterdam: Elsevier B.V., v. 426, n. 1-2, p. 157-161, 2005.
dc.identifier.doi10.1016/j.tca.2004.07.016
dc.identifier.issn0040-6031
dc.identifier.lattes8507741729691974
dc.identifier.lattes6725982228402054
dc.identifier.urihttp://hdl.handle.net/11449/9979
dc.identifier.wosWOS:000226887500020
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofThermochimica Acta
dc.relation.ispartofjcr2.189
dc.relation.ispartofsjr0,605
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectDSCpt
dc.subjectcrystallization mechanismpt
dc.subjecttellurite glassespt
dc.titleDSC studies on crystallization mechanisms of tellurite glassesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes8507741729691974
unesp.author.lattes6725982228402054
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

Arquivos

Licença do Pacote

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição: