Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering

3 mol% yttria tetragonal zirconia polycrystalline (3YTZP) ceramic composites with 2.5, 5 and 10 vol% graphene nanoplatelets (GNP) were pressureless sintered in argon atmosphere between 1350 and 1450 °C. The effects of the GNP content and the sintering temperature on the densification, microstructure...

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Detalles Bibliográficos
Autores: López Pernía, Cristina, Gallardo López, Ángela María, Morales Rodríguez, Ana, Poyato Galán, Rosalía
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2019
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/142596
Acceso en línea:https://hdl.handle.net/11441/142596
https://doi.org/10.1016/j.jeurceramsoc.2019.05.067
Access Level:acceso abierto
Palabra clave:Electrical properties
Graphene nanoplatelet
Pressureless sintering
Zirconia
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spelling Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sinteringLópez Pernía, CristinaGallardo López, Ángela MaríaMorales Rodríguez, AnaPoyato Galán, RosalíaElectrical propertiesGraphene nanoplateletPressureless sinteringZirconia3 mol% yttria tetragonal zirconia polycrystalline (3YTZP) ceramic composites with 2.5, 5 and 10 vol% graphene nanoplatelets (GNP) were pressureless sintered in argon atmosphere between 1350 and 1450 °C. The effects of the GNP content and the sintering temperature on the densification, microstructure and electrical properties of the composites were investigated. An isotropic distribution of GNP surrounding ceramic regions was exhibited regardless the GNP content and sintering temperature used. Electrical conductivity values comparable to the ones of fully dense composites prepared by more complex techniques were obtained, even though full densification was not achieved. While the composite with 5 vol% GNP exhibited electrical anisotropy with a semiconductor-type behaviour, the composite with 10 vol% GNP showed an electrically isotropic metallic-type behaviour.Ministerio de Economía y Competitividad MAT2015-67889-PElsevierFísica de la Materia CondensadaMinisterio de Economía y Competitividad (MINECO). España2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/142596https://doi.org/10.1016/j.jeurceramsoc.2019.05.067reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésJournal of the European Ceramic Society, 39 (14), 4435-4439.MAT2015-67889-Phttps://doi.org/10.1016/j.jeurceramsoc.2019.05.067info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1425962026-06-17T12:51:07Z
dc.title.none.fl_str_mv Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
title Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
spellingShingle Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
López Pernía, Cristina
Electrical properties
Graphene nanoplatelet
Pressureless sintering
Zirconia
title_short Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
title_full Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
title_fullStr Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
title_full_unstemmed Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
title_sort Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
dc.creator.none.fl_str_mv López Pernía, Cristina
Gallardo López, Ángela María
Morales Rodríguez, Ana
Poyato Galán, Rosalía
author López Pernía, Cristina
author_facet López Pernía, Cristina
Gallardo López, Ángela María
Morales Rodríguez, Ana
Poyato Galán, Rosalía
author_role author
author2 Gallardo López, Ángela María
Morales Rodríguez, Ana
Poyato Galán, Rosalía
author2_role author
author
author
dc.contributor.none.fl_str_mv Física de la Materia Condensada
Ministerio de Economía y Competitividad (MINECO). España
dc.subject.none.fl_str_mv Electrical properties
Graphene nanoplatelet
Pressureless sintering
Zirconia
topic Electrical properties
Graphene nanoplatelet
Pressureless sintering
Zirconia
description 3 mol% yttria tetragonal zirconia polycrystalline (3YTZP) ceramic composites with 2.5, 5 and 10 vol% graphene nanoplatelets (GNP) were pressureless sintered in argon atmosphere between 1350 and 1450 °C. The effects of the GNP content and the sintering temperature on the densification, microstructure and electrical properties of the composites were investigated. An isotropic distribution of GNP surrounding ceramic regions was exhibited regardless the GNP content and sintering temperature used. Electrical conductivity values comparable to the ones of fully dense composites prepared by more complex techniques were obtained, even though full densification was not achieved. While the composite with 5 vol% GNP exhibited electrical anisotropy with a semiconductor-type behaviour, the composite with 10 vol% GNP showed an electrically isotropic metallic-type behaviour.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/142596
https://doi.org/10.1016/j.jeurceramsoc.2019.05.067
url https://hdl.handle.net/11441/142596
https://doi.org/10.1016/j.jeurceramsoc.2019.05.067
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of the European Ceramic Society, 39 (14), 4435-4439.
MAT2015-67889-P
https://doi.org/10.1016/j.jeurceramsoc.2019.05.067
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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