Evaluation of rare earth oxides doping SnO2.(Co1/4,Mn3/4)O-based varistor system

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dc.contributor.authorDibb, Alessandro [UNESP]
dc.contributor.authorCilense, Mario [UNESP]
dc.contributor.authorBueno, Paulo Roberto [UNESP]
dc.contributor.authorManiette, Yves [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:17:43Z
dc.date.available2014-05-20T15:17:43Z
dc.date.issued2006-09-01
dc.description.abstractThe present paper aims to verify the inuence of rare earth oxide such as lanthanum (La2O3) and neodymium (Nd2O3) doping SnO2 + 0.25%CoO + 0.75%MnO2 + 0.05%Ta2O5 system. The analysis focus on microstructural inuence on electrical properties. Microstructural analysis were made by using Transmission Electron Microscopy (TEM) at different regions of the samples. From such analysis it was found that La2O3 and Nd2O3 oxides cause heterogeneous segregation and precipitation at grain boundary concerning cobalt and manganese, decreasing the nonohmic electrical properties, as discussed, likely due to the increasing of grain boundary non-active potential barriers.en
dc.description.affiliationUniversidade Estadual Paulista Instituto de Química Departamento de Físico-Química
dc.description.affiliationUnespUniversidade Estadual Paulista Instituto de Química Departamento de Físico-Química
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent339-343
dc.identifierhttp://dx.doi.org/10.1590/S1516-14392006000300015
dc.identifier.citationMaterials Research. ABM, ABC, ABPol, v. 9, n. 3, p. 339-343, 2006.
dc.identifier.doi10.1590/S1516-14392006000300015
dc.identifier.fileS1516-14392006000300015.pdf
dc.identifier.issn1516-1439
dc.identifier.lattes9128353103083394
dc.identifier.lattes0477045906733254
dc.identifier.orcid0000-0003-2827-0208
dc.identifier.scieloS1516-14392006000300015
dc.identifier.scopus2-s2.0-33750520971
dc.identifier.urihttp://hdl.handle.net/11449/30580
dc.language.isoeng
dc.publisherABM, ABC, ABPol
dc.relation.ispartofMaterials Research
dc.relation.ispartofjcr1.103
dc.relation.ispartofsjr0,398
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectceramicen
dc.subjectvaristoren
dc.subjecttin dioxideen
dc.subjectrare earth oxidesen
dc.titleEvaluation of rare earth oxides doping SnO2.(Co1/4,Mn3/4)O-based varistor systemen
dc.typeArtigo
unesp.author.lattes9128353103083394
unesp.author.lattes0477045906733254[3]
unesp.author.orcid0000-0003-2827-0208[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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Artigos - Físico Química - IQ