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Dielectric response of tungsten modified Ba(Ti0.90Zr0.10)O3 ceramics obtained by mixed oxide method

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dc.contributor.authorMoura, Francisco
dc.contributor.authorSimões, Alexandre Zirpoli [UNESP]
dc.contributor.authorZaghete, Maria Aparecida [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorSilva, Elson Longo da [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-05-15T13:30:33Z
dc.date.available2015-05-15T13:30:33Z
dc.date.issued2010
dc.description.abstractThe electrical response of Ba(Ti0.90Zr0.10)O3 (BZT) ceramics obtained by the mixed oxide method as a functionof tungsten content was investigated. According to X-ray diffraction analysis the single phase BZT1W (1wt.% W doped BZT) and BZT2W (2 wt.% W doped BZT) ceramics, crystallized in a perovskite structure, wereobtained. It is also shown that tungsten substituted ceramics can be sintered at a reduced temperature whencompared to the undoped BZT. Electron paramagnetic resonance (EPR) analyses reveals that substitution ofTi4+ by W6+ causes distortion in the crystal structure changing lattice parameter. Substitution of W6+ on B-siteof ABO3 perovskite BZT ceramics shifted the phase transition to lower temperatures up to a tungsten contentof 2 wt.% leading to a relaxor-like behaviour.Keywords: donor dopant; ceramics; dielectric response; mixed oxide methoden
dc.description.affiliationUniversidade Federal de Itajubá- Unifei - Campus Itabira, Rua São Paulo 377, Bairro Amazonas, 355, 35900-37, Itabira, Minas Gerais, Brazil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências e Letras de Assis, Assis, Avenida Dom Antonio, 2100, Vila Universitária, CEP 19806-900, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista- Unesp - Faculdade de Engenharia de Campus Itabira, Av. Dr Ariberto Pereira da Cunha 333, Bairro Pedregulho, P.O. Box 355, 12.516-410, Guaratinguetá, São Paulo, Brazil
dc.description.affiliationUnespLaboratório Interdisciplinar em Cerâmica, Instituto de Química, Universidade Estadual Paulista, P.O. Box 355, 14801-907 Araraquara, São Paulo, Brazil
dc.format.extent245-251
dc.identifierhttp://www.jourlib.org/paper/2378060#.VUI6eCFViko
dc.identifier.citationProcessing and Application of Ceramics, v. 4, p. 245-251, 2010.
dc.identifier.fileISSN1820-6131-2010-04-245-251.pdf
dc.identifier.issn1820-6131
dc.identifier.lattes3233942511496583
dc.identifier.lattes9330470036613511
dc.identifier.lattes3573363486614904
dc.identifier.lattes1807399214239200
dc.identifier.lattes9848311210578810
dc.identifier.urihttp://hdl.handle.net/11449/123643
dc.language.isoeng
dc.relation.ispartofProcessing and Application of Ceramics
dc.relation.ispartofjcr1.152
dc.relation.ispartofsjr0,318
dc.rights.accessRightsAcesso aberto
dc.sourceCurrículo Lattes
dc.subjectDonor dopanten
dc.subjectCeramicsen
dc.subjectDielectric responseen
dc.subjectMixed oxide methoden
dc.titleDielectric response of tungsten modified Ba(Ti0.90Zr0.10)O3 ceramics obtained by mixed oxide methoden
dc.typeArtigo
dspace.entity.typePublication
unesp.author.lattes3233942511496583
unesp.author.lattes9330470036613511
unesp.author.lattes3573363486614904
unesp.author.lattes1807399214239200
unesp.author.lattes9848311210578810
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Guaratinguetápt
unesp.departmentBioquímica e Tecnologia Química - IQARpt
unesp.departmentMateriais e Tecnologia - FEGpt
unesp.departmentFísico-Química - IQARpt

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Guaratinguetá - FEG - Faculdade de Engenharia e Ciências
Araraquara - IQAR - Instituto de Química