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Direct amorphous-to-cubic perovskite phase transformation for lead titanate

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dc.contributor.authorLeite, E. R.
dc.contributor.authorParis, E. C.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:19:52Z
dc.date.available2014-05-27T11:19:52Z
dc.date.issued2000-01-01
dc.description.abstractThe phase evolution of lead titanate processed by the polymeric precursor method was investigated by thermal analysis, X-ray diffraction, and high-resolution transmission electron microscopy. The results showed that the cubic perovskite PbTiO3 (PT) phase is formed from an inorganic amorphous precursor at a temperature of 444 °C. A gradual transition from cubic to tetragonal perovskite PT was observed with the increase of calcination time at this temperature. HRTEM results showed that the cubic PT particles have a size of around 5 nm. The identification of cubic PT as an intermediate phase supports the hypothesis that the chemical homogeneity was kept at the molecular level during the synthesis process, with no cation segregation.en
dc.description.affiliationDepartment of Chemistry Laboratorio Interdisciplinar E. Fed. University of São Carlos, CEP 13565-905, São Carlos, SP
dc.description.affiliationInstitute of Chemistry Universidade Estadual Paulista Paulista State University, Araraquara, SP
dc.description.affiliationUnespInstitute of Chemistry Universidade Estadual Paulista Paulista State University, Araraquara, SP
dc.format.extent1539-1541
dc.identifierhttp://dx.doi.org/10.1111/j.1151-2916.2000.tb01427.x
dc.identifier.citationJournal of the American Ceramic Society, v. 83, n. 6, p. 1539-1541, 2000.
dc.identifier.doi10.1111/j.1151-2916.2000.tb01427.x
dc.identifier.issn0002-7820
dc.identifier.scopus2-s2.0-0033686948
dc.identifier.urihttp://hdl.handle.net/11449/66061
dc.language.isoeng
dc.relation.ispartofJournal of the American Ceramic Society
dc.relation.ispartofjcr2.956
dc.relation.ispartofsjr0,950
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAmorphous materials
dc.subjectCalcination
dc.subjectCeramic materials
dc.subjectFerroelectric materials
dc.subjectHigh resolution electron microscopy
dc.subjectHigh temperature effects
dc.subjectParticle size analysis
dc.subjectPerovskite
dc.subjectPhase transitions
dc.subjectThermoanalysis
dc.subjectTransmission electron microscopy
dc.subjectX ray crystallography
dc.subjectLead titanate
dc.subjectLead compounds
dc.titleDirect amorphous-to-cubic perovskite phase transformation for lead titanateen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química