Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties

Detalhes bibliográficos
Autor(a) principal: Goulart, Celso Antonio [UNESP]
Data de Publicação: 2023
Outros Autores: Toledo Piza, Mariana Miranda de, Campos, Tiago Moreira Bastos, Bonfante, Estevam Augusto, Lisboa Filho, Paulo Noronha [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.ceramint.2023.04.034
http://hdl.handle.net/11449/247157
Resumo: Dense and homogeneous nanostructured Y-TZP ceramics were prepared by colloidal processing and 2-step sintering using commercial powders. The influence of non-homogeneous yttria distributions on mechanical properties and Low-Temperature Degradation (LTD) resistance were assessed. Physical, structural, microstructural, and mechanical characterizations of all groups were evaluated and compared before and after artificial aging. Nanostructured Y-TZP samples with non-homogeneous yttria distributions presented the highest fracture toughness and elevated fracture strength. These samples were susceptible to LTD, but with the transformed monoclinic phase fraction restricted to the near-surface region. The characterization data of nanostructured samples were compared to those of conventional 3Y-TZP. The results of this work indicate that it may be possible to prepare Y-TZP ceramics with improved mechanical properties and resistance to LTD by careful and systematic design and engineering of nanostructures.
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spelling Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical propertiesCeramic processingLow-temperature degradationMechanical propertiesNanostructuresY-TZPDense and homogeneous nanostructured Y-TZP ceramics were prepared by colloidal processing and 2-step sintering using commercial powders. The influence of non-homogeneous yttria distributions on mechanical properties and Low-Temperature Degradation (LTD) resistance were assessed. Physical, structural, microstructural, and mechanical characterizations of all groups were evaluated and compared before and after artificial aging. Nanostructured Y-TZP samples with non-homogeneous yttria distributions presented the highest fracture toughness and elevated fracture strength. These samples were susceptible to LTD, but with the transformed monoclinic phase fraction restricted to the near-surface region. The characterization data of nanostructured samples were compared to those of conventional 3Y-TZP. The results of this work indicate that it may be possible to prepare Y-TZP ceramics with improved mechanical properties and resistance to LTD by careful and systematic design and engineering of nanostructures.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Physics School of Sciences São Paulo State University, SPDepartment of Prosthodontics and Periodontology Bauru School of Dentistry University of São Paulo, SPDepartment of Physics School of Sciences São Paulo State University, SPFAPESP: 2020/12874-9FAPESP: 2020/16500-6FAPESP: 2021/04697-2FAPESP: 2021/06730-7FAPESP: 2022/05496-3Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Goulart, Celso Antonio [UNESP]Toledo Piza, Mariana Miranda deCampos, Tiago Moreira BastosBonfante, Estevam AugustoLisboa Filho, Paulo Noronha [UNESP]2023-07-29T13:07:52Z2023-07-29T13:07:52Z2023-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article22076-22088http://dx.doi.org/10.1016/j.ceramint.2023.04.034Ceramics International, v. 49, n. 13, p. 22076-22088, 2023.0272-8842http://hdl.handle.net/11449/24715710.1016/j.ceramint.2023.04.0342-s2.0-85152363693Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCeramics Internationalinfo:eu-repo/semantics/openAccess2023-07-29T13:07:52Zoai:repositorio.unesp.br:11449/247157Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T13:07:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
title Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
spellingShingle Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
Goulart, Celso Antonio [UNESP]
Ceramic processing
Low-temperature degradation
Mechanical properties
Nanostructures
Y-TZP
title_short Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
title_full Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
title_fullStr Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
title_full_unstemmed Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
title_sort Y-TZP nanostructures with non-homogeneous yttria distribution for improved hydrothermal degradation resistance and mechanical properties
author Goulart, Celso Antonio [UNESP]
author_facet Goulart, Celso Antonio [UNESP]
Toledo Piza, Mariana Miranda de
Campos, Tiago Moreira Bastos
Bonfante, Estevam Augusto
Lisboa Filho, Paulo Noronha [UNESP]
author_role author
author2 Toledo Piza, Mariana Miranda de
Campos, Tiago Moreira Bastos
Bonfante, Estevam Augusto
Lisboa Filho, Paulo Noronha [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Goulart, Celso Antonio [UNESP]
Toledo Piza, Mariana Miranda de
Campos, Tiago Moreira Bastos
Bonfante, Estevam Augusto
Lisboa Filho, Paulo Noronha [UNESP]
dc.subject.por.fl_str_mv Ceramic processing
Low-temperature degradation
Mechanical properties
Nanostructures
Y-TZP
topic Ceramic processing
Low-temperature degradation
Mechanical properties
Nanostructures
Y-TZP
description Dense and homogeneous nanostructured Y-TZP ceramics were prepared by colloidal processing and 2-step sintering using commercial powders. The influence of non-homogeneous yttria distributions on mechanical properties and Low-Temperature Degradation (LTD) resistance were assessed. Physical, structural, microstructural, and mechanical characterizations of all groups were evaluated and compared before and after artificial aging. Nanostructured Y-TZP samples with non-homogeneous yttria distributions presented the highest fracture toughness and elevated fracture strength. These samples were susceptible to LTD, but with the transformed monoclinic phase fraction restricted to the near-surface region. The characterization data of nanostructured samples were compared to those of conventional 3Y-TZP. The results of this work indicate that it may be possible to prepare Y-TZP ceramics with improved mechanical properties and resistance to LTD by careful and systematic design and engineering of nanostructures.
publishDate 2023
dc.date.none.fl_str_mv 2023-07-29T13:07:52Z
2023-07-29T13:07:52Z
2023-07-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.ceramint.2023.04.034
Ceramics International, v. 49, n. 13, p. 22076-22088, 2023.
0272-8842
http://hdl.handle.net/11449/247157
10.1016/j.ceramint.2023.04.034
2-s2.0-85152363693
url http://dx.doi.org/10.1016/j.ceramint.2023.04.034
http://hdl.handle.net/11449/247157
identifier_str_mv Ceramics International, v. 49, n. 13, p. 22076-22088, 2023.
0272-8842
10.1016/j.ceramint.2023.04.034
2-s2.0-85152363693
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ceramics International
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 22076-22088
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1799965396464304128

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