Sintering and electrical conductivity of gadolinia-doped ceria

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dc.contributor.authorBATISTA, R.M.
dc.contributor.authorFERREIRA, A.M.D.C.
dc.contributor.authorMUCCILLO, E.N.S.
dc.coverageInternacionalpt_BR
dc.date.accessioned2016-03-08T11:58:58Z
dc.date.available2016-03-08T11:58:58Z
dc.date.issued2016pt_BR
dc.description.abstractBulk specimens of Ce0.9Gd0.1O2-delta prepared with powders within a range of specific surface area were sintered in oxidizing, inert, and reducing atmospheres. The aim of this work is to investigate the effects of the sintering atmosphere on the microstructure and grain and grain boundary conductivities of the solid electrolyte. The lattice parameter determined by Rietveld refinement is 0.5420(1) nm, and the microstrain was found negligible in the powder materials. Specimens sintered in the Ar/4 % H-2 mixture display larger average grain sizes independent on the particle size of the starting powders. The grain and grain boundary conductivities of specimens sintered under reducing atmosphere are remarkably lower than those sintered under oxidizing and inert atmospheres. The activation energy (similar to 0.90 eV) for total electrical conductivity remains unchanged with both the initial particle size and the sintering atmosphere.
dc.format.extentp. 1159-1166pt_BR
dc.identifier.citationBATISTA, R.M.; FERREIRA, A.M.D.C.; MUCCILLO, E.N.S. Sintering and electrical conductivity of gadolinia-doped ceria. <b>Ionics</b>, v. 22, n. 7, p. p. 1159-1166, 2016. DOI: <a href="https://dx.doi.org/10.1007/s11581-016-1648-7">10.1007/s11581-016-1648-7</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/25802.
dc.identifier.doi10.1007/s11581-016-1648-7
dc.identifier.fasciculo7
dc.identifier.issn0947-7047pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9219-388X
dc.identifier.percentilfi47.90
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/25802
dc.identifier.vol22pt_BR
dc.relation.ispartofIonicspt_BR
dc.rightsopenAccesspt_BR
dc.subjectsintering
dc.subjectionic conductivity
dc.subjectmicrostructure
dc.subjectelectric conductivity
dc.subjectgrain boundaries
dc.subjectdoped materials
dc.subjectcerium oxides
dc.subjectgadolinium oxides
dc.titleSintering and electrical conductivity of gadolinia-doped ceriapt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorELIANA NAVARRO DOS SANTOS MUCCILLO
ipen.autorRAFAEL MORGADO BATISTA
ipen.codigoautor1298
ipen.codigoautor3984
ipen.contributor.ipenauthorELIANA NAVARRO DOS SANTOS MUCCILLO
ipen.contributor.ipenauthorRAFAEL MORGADO BATISTA
ipen.date.recebimento16-03pt_BR
ipen.identifier.fi2.062pt_BR
ipen.identifier.ipendoc21732pt_BR
ipen.identifier.iwosWoS
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi25.00 - 49.99
ipen.type.genreArtigo
relation.isAuthorOfPublicationbc09f7ae-f25e-4f60-87a3-0c89989e8304
relation.isAuthorOfPublication36303912-4142-4026-a408-eb359f03d141
relation.isAuthorOfPublication.latestForDiscovery36303912-4142-4026-a408-eb359f03d141
sigepi.autor.atividadeBATISTA, R.M.:3984:720:S
sigepi.autor.atividadeMUCCILLO, E.N.S.:1298:720:N
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