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Microstructural evolution during sintering of CoO doped SnO2 ceramics

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dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorCerri, J. A.
dc.contributor.authorLeite, E. R.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorShamsuzzoha, M.
dc.contributor.authorBradt, R. C.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniv Alabama
dc.date.accessioned2014-05-20T15:21:46Z
dc.date.available2014-05-20T15:21:46Z
dc.date.issued1999-01-01
dc.description.abstractAddition of 0.5 mol% of CoO into SnO2 promotes densification of this oxide to 99% of the theoretical density during sintering. TEM in this system reveals that after sintering at 1210 degrees C a secondary phase of Co2SnO4 is precipitated at the SnO2 grain boundaries during cooling. This phase is formed by diffusion of Co ions from the bulk to the grain boundary during sintering leaving needle-like defects at the grain bulk. The high resolution TEM micrograph of this system sintered at 1210 degrees C and 1400 degrees C showed an amorphous grain boundary region low in cobalt, indicating that the Co2SnO4 phase is precipitated from this region. (C) 1999 Elsevier B.V. Limited and Techna S.r.l. All rights reserved.en
dc.description.affiliationUNESP, Inst Quim, BR-14800 Araraquara, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Quim, BR-13560 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Alabama, Dept Met & Mat Engn, Tuscaloosa, AL 35487 USA
dc.description.affiliationUnespUNESP, Inst Quim, BR-14800 Araraquara, SP, Brazil
dc.format.extent253-256
dc.identifierhttp://dx.doi.org/10.1016/S0272-8842(98)00032-7
dc.identifier.citationCeramics International. Oxford: Elsevier B.V., v. 25, n. 3, p. 253-256, 1999.
dc.identifier.doi10.1016/S0272-8842(98)00032-7
dc.identifier.issn0272-8842
dc.identifier.urihttp://hdl.handle.net/11449/32890
dc.identifier.wosWOS:000079365800008
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofCeramics International
dc.relation.ispartofjcr3.057
dc.relation.ispartofsjr0,784
dc.rights.accessRightsAcesso restritopt
dc.sourceWeb of Science
dc.titleMicrostructural evolution during sintering of CoO doped SnO2 ceramicsen
dc.typeArtigopt
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
relation.isOrgUnitOfPublicationbc74a1ce-4c4c-4dad-8378-83962d76c4fd
relation.isOrgUnitOfPublication.latestForDiscoverybc74a1ce-4c4c-4dad-8378-83962d76c4fd
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQARpt
unesp.departmentFísico-Química - IQARpt

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