Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites

Detalhes bibliográficos
Autor(a) principal: Martinelli, Antonio Eduardo
Data de Publicação: 2016
Outros Autores: Pinheiro, L.B., Tabuti, F.N.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/31603
Resumo: The influence of a microwave-assisted hydrothermal treatment (MWH) on the properties of NiO– ZrO2:8 mol%Y2O3–CeO2 composite was investigated. The composites were prepared by coprecipitation of nickel and cerium salts in a suspension of ZrO2:8 mol%Y2O3 (YSZ). Simultaneous thermogravimetric and differential thermal analysis revealed that the MWH promotes the crystallization of Ni(OH)2, as confirmed by X-ray diffraction. The sintering behavior of ceramic compacts was influenced by the MWH treatment, which contributed to slightly higher final apparent densities. Impedance spectroscopy measurements revealed that the electrical properties of sintered composites exhibit characteristics of mixedionic–electronic conductors, a feature that was suppressed in the samples that underwent MHW treatment. Such an effect evidences the influence of hydrothermal treatment on the final microstructure of the composite
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spelling Martinelli, Antonio EduardoPinheiro, L.B.Tabuti, F.N.2021-02-22T18:55:30Z2021-02-22T18:55:30Z2016-05PINHEIRO, L.B.; TABUTI, F.N.; MARTINELLI, A.e.; FONSECA, F.C.. Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites. Ceramics International, [S.L.], v. 42, n. 7, p. 9058-9064, maio 2016. Elsevier BV. http://dx.doi.org/10.1016/j.ceramint.2016.02.165. Disponível em: https://www.sciencedirect.com/science/article/pii/S0272884216301067?via%3Dihub. Acesso em: 20 jan. 2021.0272-8842https://repositorio.ufrn.br/handle/123456789/3160310.1016/j.ceramint.2016.02.165ElsevierCeramic compositesCeramic compositesMicrowave-assisted hydrothermalImpedance spectroscopyInfluence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based compositesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleThe influence of a microwave-assisted hydrothermal treatment (MWH) on the properties of NiO– ZrO2:8 mol%Y2O3–CeO2 composite was investigated. The composites were prepared by coprecipitation of nickel and cerium salts in a suspension of ZrO2:8 mol%Y2O3 (YSZ). Simultaneous thermogravimetric and differential thermal analysis revealed that the MWH promotes the crystallization of Ni(OH)2, as confirmed by X-ray diffraction. The sintering behavior of ceramic compacts was influenced by the MWH treatment, which contributed to slightly higher final apparent densities. Impedance spectroscopy measurements revealed that the electrical properties of sintered composites exhibit characteristics of mixedionic–electronic conductors, a feature that was suppressed in the samples that underwent MHW treatment. 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dc.title.pt_BR.fl_str_mv Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
title Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
spellingShingle Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
Martinelli, Antonio Eduardo
Ceramic composites
Ceramic composites
Microwave-assisted hydrothermal
Impedance spectroscopy
title_short Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
title_full Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
title_fullStr Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
title_full_unstemmed Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
title_sort Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
author Martinelli, Antonio Eduardo
author_facet Martinelli, Antonio Eduardo
Pinheiro, L.B.
Tabuti, F.N.
author_role author
author2 Pinheiro, L.B.
Tabuti, F.N.
author2_role author
author
dc.contributor.author.fl_str_mv Martinelli, Antonio Eduardo
Pinheiro, L.B.
Tabuti, F.N.
dc.subject.por.fl_str_mv Ceramic composites
Ceramic composites
Microwave-assisted hydrothermal
Impedance spectroscopy
topic Ceramic composites
Ceramic composites
Microwave-assisted hydrothermal
Impedance spectroscopy
description The influence of a microwave-assisted hydrothermal treatment (MWH) on the properties of NiO– ZrO2:8 mol%Y2O3–CeO2 composite was investigated. The composites were prepared by coprecipitation of nickel and cerium salts in a suspension of ZrO2:8 mol%Y2O3 (YSZ). Simultaneous thermogravimetric and differential thermal analysis revealed that the MWH promotes the crystallization of Ni(OH)2, as confirmed by X-ray diffraction. The sintering behavior of ceramic compacts was influenced by the MWH treatment, which contributed to slightly higher final apparent densities. Impedance spectroscopy measurements revealed that the electrical properties of sintered composites exhibit characteristics of mixedionic–electronic conductors, a feature that was suppressed in the samples that underwent MHW treatment. Such an effect evidences the influence of hydrothermal treatment on the final microstructure of the composite
publishDate 2016
dc.date.issued.fl_str_mv 2016-05
dc.date.accessioned.fl_str_mv 2021-02-22T18:55:30Z
dc.date.available.fl_str_mv 2021-02-22T18:55:30Z
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.citation.fl_str_mv PINHEIRO, L.B.; TABUTI, F.N.; MARTINELLI, A.e.; FONSECA, F.C.. Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites. Ceramics International, [S.L.], v. 42, n. 7, p. 9058-9064, maio 2016. Elsevier BV. http://dx.doi.org/10.1016/j.ceramint.2016.02.165. Disponível em: https://www.sciencedirect.com/science/article/pii/S0272884216301067?via%3Dihub. Acesso em: 20 jan. 2021.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/31603
dc.identifier.issn.none.fl_str_mv 0272-8842
dc.identifier.doi.none.fl_str_mv 10.1016/j.ceramint.2016.02.165
identifier_str_mv PINHEIRO, L.B.; TABUTI, F.N.; MARTINELLI, A.e.; FONSECA, F.C.. Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites. Ceramics International, [S.L.], v. 42, n. 7, p. 9058-9064, maio 2016. Elsevier BV. http://dx.doi.org/10.1016/j.ceramint.2016.02.165. Disponível em: https://www.sciencedirect.com/science/article/pii/S0272884216301067?via%3Dihub. Acesso em: 20 jan. 2021.
0272-8842
10.1016/j.ceramint.2016.02.165
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dc.language.iso.fl_str_mv eng
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
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