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Structural and dielectric characterization of praseodymium-modified lead titanate ceramics synthesized by the OPM route

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dc.contributor.authorPinto, Alexandre H.
dc.contributor.authorSouza, Flavio L.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorLeite, Edson R.
dc.contributor.authorCamargo, Emerson R.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Federal do ABC (UFABC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:17:39Z
dc.date.available2014-05-20T14:17:39Z
dc.date.issued2011-10-17
dc.description.abstractQuasi-spherical nanoparticles of praseodymium-modified lead titanate powder (Pb(0.80)Pr(0.20)TiO(3)) with an average size of 54.8 nm were synthesized successfully by the oxidant-peroxo method (OPM) and were used to prepare highly dense ceramic bodies which were sintered at 1100 and 1150 degrees C for 2 h. A tetragonal phase was identified in the powder and ceramic samples by X-ray powder diffraction and FT-Raman spectroscopy at room temperature. The fractured surface of the ceramic sample showed a high degree of densification with fairly uniform grain sizes. Dielectric constants measured in the range of 30-300 degrees C at different frequencies (120 Hz and at 1,10 and 100 kHz) indicated that samples with 20 mol% praseodymium showed normal ferroelectric behavior regardless of the sintering temperature. (C) 2011 Elsevier B.V. All rights reserved.en
dc.description.affiliationUFSCar Fed Univ São Carlos, Dept Chem, LIEC Lab Interdisciplinar Eletroquim & Cerem, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUFABC Universidade Federal do ABC (UFABC), Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP, Brazil
dc.description.affiliationUNESP São Paulo State Univ, Chem Inst Araraquara, Dept Biochem, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP São Paulo State Univ, Chem Inst Araraquara, Dept Biochem, BR-14801907 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFinanciadora de Estudos e Projetos (FINEP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipINCTMN/CMDMC
dc.description.sponsorshipIdFAPESP: 07/50904-2
dc.description.sponsorshipIdFAPESP: 07/58891-7
dc.format.extent259-263
dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2011.06.040
dc.identifier.citationMaterials Chemistry and Physics. Lausanne: Elsevier B.V. Sa, v. 130, n. 1-2, p. 259-263, 2011.
dc.identifier.doi10.1016/j.matchemphys.2011.06.040
dc.identifier.issn0254-0584
dc.identifier.urihttp://hdl.handle.net/11449/25288
dc.identifier.wosWOS:000295601700042
dc.language.isoeng
dc.publisherElsevier B.V. Sa
dc.relation.ispartofMaterials Chemistry and Physics
dc.relation.ispartofjcr2.210
dc.relation.ispartofsjr0,615
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectOxidesen
dc.subjectCeramicsen
dc.subjectChemical synthesisen
dc.subjectDielectric propertiesen
dc.titleStructural and dielectric characterization of praseodymium-modified lead titanate ceramics synthesized by the OPM routeen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V. Sa
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQpt

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Araraquara - IQAR - Instituto de Química