Effect of the sintering conditions on the electrical properties of Nd(3+) modified PLZT ceramics

dc.contributor.authorRoca, R. Alvarez
dc.contributor.authorBotero, E. R.
dc.contributor.authorGuerrero, F.
dc.contributor.authorGuerra, J. D. S. [UNESP]
dc.contributor.authorGarcia, D.
dc.contributor.authorEiras, J. A.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniv Oriente
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:48Z
dc.date.available2014-05-20T13:29:48Z
dc.date.issued2008-02-21
dc.description.abstractThe effect of the sintering method on the microstructural and electrical properties of (Pb(0.89)Nd(0.02)La(0.09))(Zr(0.65)Ti(0.35))O(3) (PNLZT) ceramics was studied by impedance spectroscopy. Structural and microstructural analyses were performed using x-ray and scanning electron microscopy techniques. Two different sintering routes were employed: the conventional and the hot-pressing sintering methods. The impedance analysis provided a convincing evidence for the existence of both grain (g) and grain boundary (gb) contributions to the conduction process. An equivalent circuit for the impedance behaviour has been proposed and discussed. The variation in the sintering method produces significant changes in the grain and grain boundary conductivities. For the grain effect, the main conduction mechanism has been associated with oxygen vacancy migration. Otherwise, for grain boundary conductivity the impedance behaviour has been discussed in terms of the brick-layer and the constriction resistance models (BLM and CRM, respectively).en
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Fis, Grp Ceram Ferroeletr, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniv Oriente, Dept Fis, Fac Ciencias Nat, Santiago de Cuba, Cuba
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.format.extent8
dc.identifierhttp://dx.doi.org/10.1088/0022-3727/41/4/045410
dc.identifier.citationJournal of Physics D-applied Physics. Bristol: Iop Publishing Ltd, v. 41, n. 4, p. 8, 2008.
dc.identifier.doi10.1088/0022-3727/41/4/045410
dc.identifier.issn0022-3727
dc.identifier.urihttp://hdl.handle.net/11449/10095
dc.identifier.wosWOS:000253177900041
dc.language.isoeng
dc.publisherIop Publishing Ltd
dc.relation.ispartofJournal of Physics D: Applied Physics
dc.relation.ispartofjcr2.373
dc.relation.ispartofsjr0,717
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleEffect of the sintering conditions on the electrical properties of Nd(3+) modified PLZT ceramicsen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
dcterms.rightsHolderIop Publishing Ltd
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

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