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

dc.contributorUniversidade Federal do Ceará (UFC)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-27T11:20:17Z
dc.date.accessioned2022-10-05T17:44:05Z
dc.date.available2014-05-27T11:20:17Z
dc.date.available2022-10-05T17:44:05Z
dc.date.created2014-05-27T11:20:17Z
dc.date.issued2001-08-20
dc.identifierJournal of Physics Condensed Matter, v. 13, n. 33, p. 7305-7314, 2001.
dc.identifier0953-8984
dc.identifierhttp://hdl.handle.net/11449/66563
dc.identifier10.1088/0953-8984/13/33/311
dc.identifier2-s2.0-0035920581
dc.identifier6725982228402054
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3916315
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.
dc.languageeng
dc.relationJournal of Physics: Condensed Matter
dc.relation2.617
dc.relation0,875
dc.rightsAcesso 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 ceramics
dc.typeArtigo


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