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dc.contributor.authorLeite, Edson R.-
dc.contributor.authorCerqueira, Marinalva-
dc.contributor.authorPerazoli, Lenig A.-
dc.contributor.authorNasar, Ricardo S.-
dc.contributor.authorLongo, Elson-
dc.contributor.authorVarela, José Arana-
dc.identifier.citationJournal of the American Ceramic Society, v. 79, n. 6, p. 1563-1568, 1996.-
dc.description.abstractThe phase formation mechanism, as well as the morphotropic phase boundary, of lead zirconate titanate (PZT) processed by a partial oxalate method was investigated by simultaneous thermal analysis (TG-DTA) and by qualitative and quantitative X-ray diffraction (XRD). The results show that the ZrxTi1-xO2 (ZT) phase reacts with PbO forming the PZT phase without intermediate phases. XRD analysis showed the coexistence of rhombohedral and tetragonal phases for 0.47 ≤ x ≤ 0.55 with the phase boundary composition for x = 0.51. For low calcination temperatures, preferential formation of the PZT rhombohedral phase was observed. A model for phase formation of PZT by the partial oxalate method is proposed based on the existence of two interfaces of reaction (PbO-PZT and PZT-ZT) and diffusion of cations.en
dc.subjectDifferential thermal analysis-
dc.subjectInterfaces (materials)-
dc.subjectPhase composition-
dc.subjectPhase transitions-
dc.subjectSynthesis (chemical)-
dc.subjectThermal effects-
dc.subjectThermogravimetric analysis-
dc.subjectX ray diffraction-
dc.subjectCalcination temperature-
dc.subjectLead zirconate titanate-
dc.subjectMorphotropic phase boundary-
dc.subjectPartial oxalate method-
dc.subjectPhase formation-
dc.subjectRhombohedral phase-
dc.subjectSimultaneous thermal analysis-
dc.subjectTetragonal phase-
dc.subjectX ray fluorescence-
dc.subjectLead compounds-
dc.titleMechanism of phase formation in Pb(ZrxTi1-x)O3 synthesized by a partial oxalate methoden
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionAmerican Ceramic Society-
dc.description.affiliationDepartamento de Química Univ. Federal de São Carlos, São Paulo-
dc.description.affiliationInstituto de Química Universidade Estadual Paulista, São Paulo-
dc.description.affiliationAmerican Ceramic Society-
dc.description.affiliationUnespInstituto de Química Universidade Estadual Paulista, São Paulo-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of the American Ceramic Society-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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