Liquid-phase flash sintering 8YSZ with alkali halide sintering aids

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dc.contributor.authorDIAZ, J.C.C.A.pt_BR
dc.contributor.authorMUCCILLO, R.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2020-09-25T18:53:07Z
dc.date.available2020-09-25T18:53:07Z
dc.date.issued2020pt_BR
dc.description.abstractThe properties of ZrO2: 8 mol% Y2O3 (8YSZ) ceramics with LiF and KCl sintering aids for liquid phase formation during electric field-assisted sintering were studied. Sintering experiments were carried out at 650 °C under 200 V cm−1 AC electric field by varying current density, current application time, as well as LiF and KCl contents. Pellets sintered with KCl addition had cavities, cracks and fractures. Pellets sintered with 15 wt.% LiF, on the other hand, were homogeneous after thermal removal of LiF upon Joule heating. Low electric current densities coupled with longer application times produced homogeneous specimens. Three different stages were identified during sintering experiments: (i) LiF melting with the electric field applied at furnace temperatures lower than its melting point, (ii) shrinkage due to liquid phase formation and LiF removal, (iii) final densification due to grain growth and pore elimination. The electrical behavior and an estimate of the porosity were carried out by electrochemical impedance spectroscopy measurements.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDCNPq: 302357/2018-1; 305889/2018-4pt_BR
dc.description.sponsorshipIDFAPESP: 13/07296-2; 18/13620-0pt_BR
dc.format.extent4299-4303pt_BR
dc.identifier.citationDIAZ, J.C.C.A.; MUCCILLO, R. Liquid-phase flash sintering 8YSZ with alkali halide sintering aids. <b>Journal of the European Ceramic Society</b>, v. 40, n. 12, p. 4299-4303, 2020. DOI: <a href="https://dx.doi.org/10.1016/j.jeurceramsoc.2020.03.022">10.1016/j.jeurceramsoc.2020.03.022</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/31389.
dc.identifier.doi10.1016/j.jeurceramsoc.2020.03.022pt_BR
dc.identifier.fasciculo12pt_BR
dc.identifier.issn0955-2219pt_BR
dc.identifier.orcid0000-0002-8598-279Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8598-279X
dc.identifier.percentilfi94.83pt_BR
dc.identifier.percentilfiCiteScore88.50
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31389
dc.identifier.vol40pt_BR
dc.relation.ispartofJournal of the European Ceramic Societypt_BR
dc.rightsopenAccesspt_BR
dc.subjectzirconium oxides
dc.subjectisothermal processes
dc.subjectelectric fields
dc.subjectimpedance
dc.subjectspectroscopy
dc.subjecthalides
dc.subjectalkali metals
dc.subjectlithium fluorides
dc.titleLiquid-phase flash sintering 8YSZ with alkali halide sintering aidspt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorREGINALDO MUCCILLO
ipen.autorJULIO CESAR CAMILO ALBORNOZ DIAZ
ipen.codigoautor1165
ipen.codigoautor15028
ipen.contributor.ipenauthorREGINALDO MUCCILLO
ipen.contributor.ipenauthorJULIO CESAR CAMILO ALBORNOZ DIAZ
ipen.date.recebimento20-09
ipen.identifier.fi5.302pt_BR
ipen.identifier.fiCiteScore8.2
ipen.identifier.ipendoc27163pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi4.500 - 5.999
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublication97e4b17d-7782-42dc-a38c-60d9b37440a4
relation.isAuthorOfPublication26c4e8b9-bf2c-4d7f-bb5c-0e84c8483964
relation.isAuthorOfPublication.latestForDiscovery26c4e8b9-bf2c-4d7f-bb5c-0e84c8483964
sigepi.autor.atividadeMUCCILLO, R.:1165:720:Npt_BR
sigepi.autor.atividadeDIAZ, J.C.C.A.:15028:720:Spt_BR

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