Y-TZP dental ceramics: Sintering process improvement using microwave energy

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dc.contributor.authorSOLANO, A.
dc.contributor.authorARATA, A.
dc.contributor.authorLIMA, N.B.
dc.contributor.authorUSSUI, V.
dc.contributor.authorLAZAR, D.R.R.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CERÂMICA, 62.pt_BR
dc.date.accessioned2019-02-22T17:43:26Z
dc.date.available2019-02-22T17:43:26Z
dc.date.eventoJune 17-21, 2018pt_BR
dc.description.abstractConventional sintering techniques of yttria-tetragonal zirconia polycrystals (Y-TZP) ceramics have presented limitations regarding the sintering time and temperature, increasing the cost of the final dental and biomedical products. Herein, microwave sintering comes to be an interesting alternative by providing fast heating, high densification and grain size control, decreasing the total time to produce the ceramic. The aim of this study was to compare the effect of microwave sintering of a pre-sintered commercial dental Y-TZP ceramic and a Y-TZP produced from powders synthesized in a laboratory scale by the copreciptation route. Densification, fracture toughness, grain size and crystalline phase quantification of sintered samples were evaluated. The synthetized and commercial (Vita Zahnfabrik, Germany) groups were submitted to 1450 °C and 1350 °C sintering temperature for 15, 30 and 60 minutes. Both groups sintered at 1450°C for 15 minutes and 30 minutes showed the higher densification results (98% concerning to theoretical density). All the samples sintered at 1350 °C achieved 96TD% independent of the sintering time. XRD quantitative phase analysis indicates that samples are formed by 89% tetragonal and 11% cubic phases (0,833 standard deviation), except for the group prepared from coprecipitated powders sintered at 1450oC for 30 minutes, that presented 79% and 21% of tetragonal and cubic phases, respectively. Therefore, microwave sintering allows the preparation of dense ceramics with high tetragonal phase content. The sintering time and temperature induced differences at the Y-TZP microstructure.pt_BR
dc.event.siglaICC; CBCpt_BR
dc.format.extent122-122pt_BR
dc.identifier.citationSOLANO, A.; ARATA, A.; LIMA, N.B.; USSUI, V.; LAZAR, D.R.R. Y-TZP dental ceramics: Sintering process improvement using microwave energy. In: INTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CERÂMICA, 62., June 17-21, 2018, Foz do Iguaçu, PR. <b>Abstract...</b> p. 122-122. Disponível em: http://repositorio.ipen.br/handle/123456789/29683.
dc.identifier.orcidaguardandopt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7384-304X
dc.identifier.orcidhttps://orcid.org/0000-0002-6444-9224
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/29683
dc.local.eventoFoz do Iguaçu, PRpt_BR
dc.rightsopenAccesspt_BR
dc.titleY-TZP dental ceramics: Sintering process improvement using microwave energypt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorANELYSE ARATA
ipen.autorDOLORES RIBEIRO RICCI LAZAR
ipen.autorVALTER USSUI
ipen.autorNELSON BATISTA DE LIMA
ipen.autorAMON SOLANO LOPES RIBEIRO
ipen.codigoautor11273
ipen.codigoautor240
ipen.codigoautor191
ipen.codigoautor550
ipen.codigoautor11606
ipen.contributor.ipenauthorANELYSE ARATA
ipen.contributor.ipenauthorDOLORES RIBEIRO RICCI LAZAR
ipen.contributor.ipenauthorVALTER USSUI
ipen.contributor.ipenauthorNELSON BATISTA DE LIMA
ipen.contributor.ipenauthorAMON SOLANO LOPES RIBEIRO
ipen.date.recebimento19-02pt_BR
ipen.event.datapadronizada2018pt_BR
ipen.identifier.ipendoc25470pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
relation.isAuthorOfPublicationf948e8e6-da7c-4c8c-8f76-dc2d73382f3c
relation.isAuthorOfPublicatione2f75c76-2269-40cf-b463-bc5207084c5f
relation.isAuthorOfPublication1cce9f1b-6fcb-4537-8c18-841807a33b68
relation.isAuthorOfPublication92984f2d-b6bd-4cd9-950a-e1105bf78d83
relation.isAuthorOfPublication0a3ac920-5147-46c4-8457-2a3c93614eda
relation.isAuthorOfPublication.latestForDiscovery0a3ac920-5147-46c4-8457-2a3c93614eda
sigepi.autor.atividadeSOLANO, A.:11606:720:Spt_BR
sigepi.autor.atividadeARATA, A.:11273:720:Npt_BR
sigepi.autor.atividadeLIMA, N.B.:550:730:Npt_BR
sigepi.autor.atividadeUSSUI, V.:191:720:Npt_BR
sigepi.autor.atividadeLAZAR, D.R.R.:240:720:Npt_BR
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