Publicação:
Pressure-induced phase transitions in Zr-rich PbZr1-xTixO3 ceramics

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dc.contributor.authorSouza Filho, A. G.
dc.contributor.authorFaria, J. L B
dc.contributor.authorFreire, P. T C
dc.contributor.authorAyala, A. P.
dc.contributor.authorSasaki, J. M.
dc.contributor.authorMelo, F. E A
dc.contributor.authorMendes Filho, J.
dc.contributor.authorAraújo, E. B. [UNESP]
dc.contributor.authorEiras, J. A.
dc.contributor.institutionUniversidade Federal do Ceará (UFC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-27T11:20:17Z
dc.date.available2014-05-27T11:20:17Z
dc.date.issued2001-08-20
dc.description.abstractA Raman study of structural changes in the Zr-rich PbZr1-x TixO3 (PZT) system under hydrostatic pressures up to 5.0 GPa is presented. We observe that externally applied pressure induces several phase transitions in PZT ceramics among phases with orthorhombic (Ao), rhombohedral low-temperature (RLT), and rhombohedral high-temperature (RHT) symmetries (all found in PZT at ambient pressure and room temperature). Each of the compositions investigated (0.02 ≤ x ≤ 0.14) exhibits a high-pressure phase with orthorhombic (OI′) symmetry. We further report a detailed study of the pressure dependence of Raman frequencies to elucidate the phase transitions and to provide a set of pressure coefficients for the high-pressure phases.en
dc.description.affiliationDepartamento de Física Universidade Federal do Ceará Campus do Pici, Caixa Postal 6030, 60455-760 Fortaleza, Ceará
dc.description.affiliationDepartamento de Física e Química Universidade Estadual de São Paulo Campus de Ilha Solteira, 12385 Ilha Solteira, SP
dc.description.affiliationDepartamento de Física Universidade Federal de São Carlos, Caixa Postal 676, 13565-670 São Carlos, SP
dc.description.affiliationUnespDepartamento de Física e Química Universidade Estadual de São Paulo Campus de Ilha Solteira, 12385 Ilha Solteira, SP
dc.format.extent7305-7314
dc.identifierhttp://dx.doi.org/10.1088/0953-8984/13/33/311
dc.identifier.citationJournal of Physics Condensed Matter, v. 13, n. 33, p. 7305-7314, 2001.
dc.identifier.doi10.1088/0953-8984/13/33/311
dc.identifier.issn0953-8984
dc.identifier.lattes6725982228402054
dc.identifier.scopus2-s2.0-0035920581
dc.identifier.urihttp://hdl.handle.net/11449/66563
dc.language.isoeng
dc.relation.ispartofJournal of Physics: Condensed Matter
dc.relation.ispartofjcr2.617
dc.relation.ispartofsjr0,875
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectHydrostatic pressure
dc.subjectLead compounds
dc.subjectPhase diagrams
dc.subjectPhase transitions
dc.subjectRaman spectroscopy
dc.subjectThermal effects
dc.subjectZirconium
dc.subjectLead titanate zirconate (PZT)
dc.subjectCeramic materials
dc.titlePressure-induced phase transitions in Zr-rich PbZr1-xTixO3 ceramicsen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
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