Electrophoretic deposition of (Zn, Nb)SnO2-films varistor superficially modified with Cr3+

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dc.contributor.authorMascarenhas Morandi Lustosa, Glauco Meireles [UNESP]
dc.contributor.authorCampos da Costa, Joao Paulo de
dc.contributor.authorPerazolli, Leinig Antonio [UNESP]
dc.contributor.authorStojanovic, Biljana D.
dc.contributor.authorZaghete, Maria Aparecida [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCentro Universitário Araraquara UNIARA
dc.contributor.institutionUniversity Belgrade
dc.date.accessioned2015-10-21T20:19:54Z
dc.date.available2015-10-21T20:19:54Z
dc.date.issued2015-07-01
dc.description.abstractRecently, there has been an important rise in the research and development aimed to improve the properties of SnO2-based varistors. Meanwhile, due to fact that ZnO-based varistors possess better electrical properties compared to SnO2-based varistors, it is shown that it is needful to add additives to improve their properties. In our study, the SnO2-powder was prepared by the chemical route (Pechini method) with addition of ZnO (1 mol%) and Nb2O5 (0.05 mol%). Films were obtained by the electrophoretic deposition of SnO2-based powder, following by microwave oven sintering. Cr3+ was deposited by EPD on the films surface and thermal treatment was carried out in a microwave oven. After electrical characterization the films showed nonlinear coefficient over 10, breakdown voltage around 60 V, low leakage current (approximate to 10(-6) A) and resistance over 200 kg cm. This indicates the efficiency of the used techniques to prepare varistor films with improved electrical properties after Cr3+ diffusion. (C) 2015 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUNESP, Inst Quim, LIEC, BR-14800060 Araraquara, SP, Brazil
dc.description.affiliationCtr Univ Araraquara UNIARA, Araraquara, SP, Brazil
dc.description.affiliationUniv Belgrade, Inst Multidisciplinary Res, Belgrade, Serbia
dc.description.affiliationUnespUNESP, Inst Quim, LIEC, Departamento de Bioquimica e Tecnologia Quimica, BR-14800060 Araraquara, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013/07296-2
dc.format.extent2083-2089
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0955221915000254
dc.identifier.citationJournal Of The European Ceramic Society, v. 35, n. 7, p. 2083-2089, 2015.
dc.identifier.doi10.1016/j.jeurceramsoc.2015.01.022
dc.identifier.issn0955-2219
dc.identifier.lattes3822723627284619
dc.identifier.orcid0000-0003-1153-2742
dc.identifier.urihttp://hdl.handle.net/11449/129081
dc.identifier.wosWOS:000351794300011
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal Of The European Ceramic Society
dc.relation.ispartofjcr3.794
dc.relation.ispartofsjr1,068
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSnO2 varistoren
dc.subjectPechinien
dc.subjectElectrophoretic depositionen
dc.subjectMicrowave sinteringen
dc.subjectCr3+ diffusionen
dc.titleElectrophoretic deposition of (Zn, Nb)SnO2-films varistor superficially modified with Cr3+en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes3822723627284619[3]
unesp.author.orcid0000-0003-1153-2742[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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