Diffuse Effect of the Tungsten Doped Ba(Zr0.10Ti0.90)O3 Ferroelectric Ceramics

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dc.contributor.authorMoura, Francisco
dc.contributor.authorSimões, Alexandre Zirpoli
dc.contributor.authorGimenes, R.
dc.contributor.authorPerazolli, Leinig [UNESP]
dc.contributor.authorZaghete, Maria Aparecida [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Itajubá (UNIFEI)
dc.date.accessioned2014-05-27T11:24:34Z
dc.date.available2014-05-27T11:24:34Z
dc.date.issued2009-12-01
dc.description.abstractBarium zirconate titanate Ba(Ti0.90Zr0.10)O3 ceramics doped with WO<inf>3</inf> (BZT:2W) have been prepared by a traditional solid phase reaction. The effect of temperature on the structural and electrical properties was investigated. X ray diffraction data evidenced formation of secondary phases for the samples sintered at 1300oC end 1350oC while the pure phase was attained at 1200oC. A modified Curie-Weiss law was used to describe the diffuseness of a phase transition. As temperature increases, the maximum dielectric permittivity decreased. The fine-grained sample showed a 'diffuse-like' ferroelectric behavior. The dielectric permittivity reaches a maximum value (εm ~6420 at 10 kHz) for the ceramics sintered at 1200oC for 4 hours.en
dc.description.affiliationLaboratório Interdisciplinar em Cerâmica - LIEC Departamento de Físico-Química Instituto de Química, UNESP, CEP 14800-900, Araraquara, SP
dc.description.affiliationUniversidade Federal de Itajubá- Unifei - Campus Itabira, Rua São Paulo, 377, Bairro: Amazonas, CEP 35900-37, Itabira, MG
dc.description.affiliationUniversidade Federal de Itajubá- Unifei - Instituto de Ciências Exatas, Av. BPS 1303, Bairro: Pinheirinho, CEP 37500-900, Itajubá, MG
dc.description.affiliationUnespLaboratório Interdisciplinar em Cerâmica - LIEC Departamento de Físico-Química Instituto de Química, UNESP, CEP 14800-900, Araraquara, SP
dc.format.extent376-380
dc.identifier.citation11th International Conference and Exhibition of the European Ceramic Society 2009, v. 1, p. 376-380.
dc.identifier.scopus2-s2.0-84879054300
dc.identifier.urihttp://hdl.handle.net/11449/71455
dc.language.isoeng
dc.relation.ispartof11th International Conference and Exhibition of the European Ceramic Society 2009
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBarium zirconate titanates
dc.subjectDielectric permittivities
dc.subjectEffect of temperature
dc.subjectFerroelectric behavior
dc.subjectSolid phase reaction
dc.subjectStructural and electrical properties
dc.subjectTemperature increase
dc.subjectX-ray diffraction data
dc.subjectBarium zirconate
dc.subjectElectric properties
dc.subjectExhibitions
dc.subjectFerroelectric ceramics
dc.subjectPermittivity
dc.subjectSintering
dc.subjectX ray diffraction
dc.subjectZirconium
dc.subjectCeramic materials
dc.titleDiffuse Effect of the Tungsten Doped Ba(Zr0.10Ti0.90)O3 Ferroelectric Ceramicsen
dc.typeTrabalho apresentado em evento
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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