Electrical and microstructural properties of CaTiO3-doped K1/2Na1/2NbO3-lead free ceramics

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dc.contributor.authorRamajo, L.
dc.contributor.authorParra, R.
dc.contributor.authorRamirez, M. A. [UNESP]
dc.contributor.authorCastro, M. S.
dc.contributor.institutionUniv Nacl Mar del Plata
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:34:07Z
dc.date.available2014-05-20T15:34:07Z
dc.date.issued2011-10-01
dc.description.abstractMicrostructure, electrical properties and dielectric behaviour of K1/2Na1/2NbO3 (KNN) and CaTiO3-modified K1/2Na1/2NbO3 (CTO-KNN) systems, were investigated. Discs doped with 0 to 0-55% mol of CaTiO3 (CTO) were sintered at 1125 degrees C for 2 h. Although minority phases were found in doped samples, CaTiO3 was not detected. It was also observed that CTO changed the microstructure and grain size of KNN drastically. Also, the Curie temperature and permittivity values decreased. Addition of CTO between 0.15 and 0.45 mol% decreases the density and dielectric values. Samples prepared with higher content of CTO than 0.45 mol% showed better electrical properties.en
dc.description.affiliationUniv Nacl Mar del Plata, CONICET, Inst Res Mat Sci & Technol INTEMA, Mar Del Plata, Buenos Aires, Argentina
dc.description.affiliationUniv Estadual Paulista, UNESP, FEG, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, FEG, BR-12516410 Guaratingueta, SP, Brazil
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
dc.description.sponsorshipANCyPT (Argentina)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent1213-1217
dc.identifierhttp://dx.doi.org/10.1007/s12034-011-0241-y
dc.identifier.citationBulletin of Materials Science. Bangalore: Indian Acad Sciences, v. 34, n. 6, p. 1213-1217, 2011.
dc.identifier.doi10.1007/s12034-011-0241-y
dc.identifier.fileWOS000298618700009.pdf
dc.identifier.issn0250-4707
dc.identifier.urihttp://hdl.handle.net/11449/42426
dc.identifier.wosWOS:000298618700009
dc.language.isoeng
dc.publisherIndian Acad Sciences
dc.relation.ispartofBulletin of Materials Science
dc.relation.ispartofjcr0.925
dc.relation.ispartofsjr0,310
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectNa0.5K0.5NbO3en
dc.subjectCaTiO3en
dc.subjectlead-free ceramicsen
dc.subjectelectrical propertiesen
dc.titleElectrical and microstructural properties of CaTiO3-doped K1/2Na1/2NbO3-lead free ceramicsen
dc.typeArtigo
dcterms.licensehttp://www.ias.ac.in/matersci/index.html
dcterms.rightsHolderIndian Acad Sciences
unesp.author.orcid0000-0002-6444-9283[1]
unesp.author.orcid0000-0002-0974-4968[2]

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