Structural, chemical and optical characterizations of an experimental SiO2–Y-TZP ceramic produced by the uniaxial/isostatic pressing technique

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dc.contributor.authorMosquim, Victor
dc.contributor.authorFerrairo, Brunna Mota
dc.contributor.authorVertuan, Mariele
dc.contributor.authorMagdalena, Aroldo Geraldo [UNESP]
dc.contributor.authorFortulan, Carlos Alberto
dc.contributor.authorLisboa-Filho, Paulo Noronha [UNESP]
dc.contributor.authorCesar, Paulo Francisco
dc.contributor.authorBonfante, Estevam Augusto
dc.contributor.authorHonório, Heitor Marques
dc.contributor.authorSanches Borges, Ana Flávia
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:19:33Z
dc.date.available2020-12-12T01:19:33Z
dc.date.issued2020-06-01
dc.description.abstractThis study aimed to produce a new SiO2+Y-TZP ceramic via uniaxial/isostatic compression that was structurally and chemically characterized relating to its translucency and flexural strength. SiO2 and Y-TZP were mixed using a ball mill, pressed and sintered at 1150 °C. The optical and mechanical properties of the specimens were compared to lithium disilicate (LD) and zirconia-reinforced lithium silicate (ZLS) (Kruskal-Wallis, α = 0.05). The Fourier Transform Infrared Spectroscopy bands suggested an interaction between Si, O and Zr. Contrast ratio and translucency parameter of the experimental ceramic were higher and lower, (p = 0.000001) respectively, than those of the LD and ZLS. The experimental ceramic presented similar flexural strength to ZLS, but lower than LD (p < 0.0001). It can be concluded that this processing method is efficient to obtain a SiO2+Y-TZP ceramic and 1150 °C crystallizes SiO2 without inducing t-m transformation. The SiO2+Y-TZP ceramic presented lower translucency and higher masking ability than the commercially available glass-ceramics, but similar flexural strength to one glass-ceramics.en
dc.description.affiliationDepartment of Operative Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of São Paulo
dc.description.affiliationDepartment of Prosthodontics and Periodontics Bauru School of Dentistry University of São Paulo
dc.description.affiliationDepartment of Chemistry UNESP-School of Science São Paulo State University
dc.description.affiliationDepartment of Mechanical Engineering São Carlos School of Engineering University of São Paulo
dc.description.affiliationDepartment of Physics UNESP-School of Science São Paulo State University
dc.description.affiliationDepartment of Biomaterials and Oral Biology School of Dentistry University of São Paulo
dc.description.affiliationDepartment of Pediatric Dentistry Orthodontics and Public Health Bauru School of Dentistry University of São Paulo
dc.description.affiliationUnespDepartment of Chemistry UNESP-School of Science São Paulo State University
dc.description.affiliationUnespDepartment of Physics UNESP-School of Science São Paulo State University
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2017/18157-4
dc.identifierhttp://dx.doi.org/10.1016/j.jmbbm.2020.103749
dc.identifier.citationJournal of the Mechanical Behavior of Biomedical Materials, v. 106.
dc.identifier.doi10.1016/j.jmbbm.2020.103749
dc.identifier.issn1878-0180
dc.identifier.issn1751-6161
dc.identifier.scopus2-s2.0-85082714304
dc.identifier.urihttp://hdl.handle.net/11449/198691
dc.language.isoeng
dc.relation.ispartofJournal of the Mechanical Behavior of Biomedical Materials
dc.sourceScopus
dc.subjectElectron microscopy (B)
dc.subjectSiO2 (D)
dc.subjectX-ray methods (B)
dc.titleStructural, chemical and optical characterizations of an experimental SiO2–Y-TZP ceramic produced by the uniaxial/isostatic pressing techniqueen
dc.typeArtigo
unesp.author.orcid0000-0002-8121-3002[2]

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