Influence of microwave-assisted hydrothermal treatment on the properties of nickel oxide–zirconia based composites
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
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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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. Such an effect evidences the influence of hydrothermal treatment on the final microstructure of the compositeengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/31603/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/31603/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTInfluenceMicrowaveAssisted_MARTINELLI_2016.pdf.txtInfluenceMicrowaveAssisted_MARTINELLI_2016.pdf.txtExtracted texttext/plain34785https://repositorio.ufrn.br/bitstream/123456789/31603/4/InfluenceMicrowaveAssisted_MARTINELLI_2016.pdf.txt489c817e847df71fc6c3a8a7f447d305MD54THUMBNAILInfluenceMicrowaveAssisted_MARTINELLI_2016.pdf.jpgInfluenceMicrowaveAssisted_MARTINELLI_2016.pdf.jpgGenerated Thumbnailimage/jpeg1770https://repositorio.ufrn.br/bitstream/123456789/31603/5/InfluenceMicrowaveAssisted_MARTINELLI_2016.pdf.jpge2ec81a0341527079718a326e4becd9dMD55123456789/316032023-01-30 19:21:41.803oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2023-01-30T22:21:41Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
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 |
url |
https://repositorio.ufrn.br/handle/123456789/31603 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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