Phase transformation/stabilization and ionic conductivity in tantalum oxide co‑doped zirconia‑scandia solid electrolyte

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dc.contributor.authorSOUZA, J.P.pt_BR
dc.contributor.authorFUJIMOTO, T.G.pt_BR
dc.contributor.authorBATISTA, R.M.pt_BR
dc.contributor.authorSTEIL, M.C.pt_BR
dc.contributor.authorMUCCILLO, R.pt_BR
dc.contributor.authorMUCCILLO, E.N.S.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2022-08-17T17:45:53Z
dc.date.available2022-08-17T17:45:53Z
dc.date.issued2022pt_BR
dc.description.abstractThe influence of small amounts of tantalum oxide as co-dopant on phase transformation and stabilization, microstructure and ionic conductivity of zirconia-10 mol% scandia is reported in this work. Cylindrical pellets were prepared by solid state synthesis with sintering at 1500 °C for 5 h. High relative density values (> 95%) were achieved. Reduction of the enthalpy for the cubic ⇌β-rhombohedral phase transformation was found for increasing amounts of the co-dopant. Full stabilization of the cubic structure at room temperature was obtained with only 0.45 mol% tantalum oxide addition. The ionic conductivity of sintered specimens was investigated as a function of the temperature and oxygen partial pressure by impedance spectroscopy. The fully stabilized co-doped system revealed a pure ionic conduction behavior up to 800 °C with wide electrolytic domain. In the 700–800 °C range, the ionic conductivity of co-doped specimens is similar to that of pure zirconia-scandia.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipIDFAPESP: 13/07296-2pt_BR
dc.description.sponsorshipIDCNPq: 305889/2018-4pt_BR
dc.description.sponsorshipIDCAPES: 88887.371190/2019-00pt_BR
dc.format.extent3919-3926pt_BR
dc.identifier.citationSOUZA, J.P.; FUJIMOTO, T.G.; BATISTA, R.M.; STEIL, M.C.; MUCCILLO, R.; MUCCILLO, E.N.S. Phase transformation/stabilization and ionic conductivity in tantalum oxide co‑doped zirconia‑scandia solid electrolyte. <b>Ionics</b>, v. 28, n. 8, p. 3919-3926, 2022. DOI: <a href="https://dx.doi.org/10.1007/s11581-022-04604-5">10.1007/s11581-022-04604-5</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33226.
dc.identifier.doi10.1007/s11581-022-04604-5pt_BR
dc.identifier.fasciculo8pt_BR
dc.identifier.issn0947-7047pt_BR
dc.identifier.orcid0000-0001-9219-388Xpt_BR
dc.identifier.orcid0000-0002-8598-279Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9219-388X
dc.identifier.orcidhttps://orcid.org/0000-0002-8598-279X
dc.identifier.percentilfi38.1pt_BR
dc.identifier.percentilfiCiteScore70.5pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33226
dc.identifier.vol28pt_BR
dc.relation.ispartofIonicspt_BR
dc.rightsopenAccesspt_BR
dc.subjectzirconium
dc.subjectceramics
dc.subjectphase transformations
dc.subjectmicrostructure
dc.subjectsolid electrolytes
dc.subjectionic conductivity
dc.titlePhase transformation/stabilization and ionic conductivity in tantalum oxide co‑doped zirconia‑scandia solid electrolytept_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorTALITA GISHITOMI FUJIMOTO
ipen.autorELIANA NAVARRO DOS SANTOS MUCCILLO
ipen.autorREGINALDO MUCCILLO
ipen.autorRAFAEL MORGADO BATISTA
ipen.autorJULIANA PEREIRA DE SOUZA
ipen.codigoautor10179
ipen.codigoautor1298
ipen.codigoautor1165
ipen.codigoautor3984
ipen.codigoautor8778
ipen.contributor.ipenauthorTALITA GISHITOMI FUJIMOTO
ipen.contributor.ipenauthorELIANA NAVARRO DOS SANTOS MUCCILLO
ipen.contributor.ipenauthorREGINALDO MUCCILLO
ipen.contributor.ipenauthorRAFAEL MORGADO BATISTA
ipen.contributor.ipenauthorJULIANA PEREIRA DE SOUZA
ipen.date.recebimento22-08
ipen.identifier.fi2.8pt_BR
ipen.identifier.fiCiteScore5.1pt_BR
ipen.identifier.ipendoc28882pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi25.00 - 49.99
ipen.type.genreArtigo
relation.isAuthorOfPublication8c39ad36-1724-4970-88ac-6665c04400b6
relation.isAuthorOfPublicationbc09f7ae-f25e-4f60-87a3-0c89989e8304
relation.isAuthorOfPublication97e4b17d-7782-42dc-a38c-60d9b37440a4
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relation.isAuthorOfPublication.latestForDiscoveryc0133a33-0641-4ced-8a20-cf00e8be898f
sigepi.autor.atividadeMUCCILLO, E.N.S.:1298:720:Npt_BR
sigepi.autor.atividadeMUCCILLO, R.:1165:720:Npt_BR
sigepi.autor.atividadeBATISTA, R.M.:3984:720:Npt_BR
sigepi.autor.atividadeFUJIMOTO, T.G.:10179:720:Npt_BR
sigepi.autor.atividadeSOUZA, J.P.:8778:720:Spt_BR
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