Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite

A ceramic composite was produced by mixing cubic zirconia with graphene nano-platelets. The samples were consolidated by flash sintering in argon atmosphere to avoid the oxidation of graphene at high temperature. The applied electrical field ranged between 50 V cm and 500 V cm, while the current den...

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Detalles Bibliográficos
Autores: Fele, Giuseppe, Biesuz, Mattia, Bettotti, Paolo, Moreno, Rodrigo, Sglavo, Vincenzo M.
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/236489
Acceso en línea:http://hdl.handle.net/10261/236489
Access Level:acceso abierto
Palabra clave:Ceramic composite
Cubic zirconia
Graphene nano-platelets
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spelling Flash sintering of yttria-stabilized zirconia/graphene nano-platelets compositeFele, GiuseppeBiesuz, MattiaBettotti, PaoloMoreno, RodrigoSglavo, Vincenzo M.Ceramic compositeCubic zirconiaGraphene nano-plateletsA ceramic composite was produced by mixing cubic zirconia with graphene nano-platelets. The samples were consolidated by flash sintering in argon atmosphere to avoid the oxidation of graphene at high temperature. The applied electrical field ranged between 50 V cm and 500 V cm, while the current density limit was set between 35 mA mm and 175 mA mm. The presence of the conductor filler reduced the onset flash temperature, and a good densification of the composite was obtained. Remarkably, the same level of densification was not possible on pure cubic zirconia samples (possessing the same geometry) as they got physically damaged at the flash ignition (likely due to internal temperature gradients). After sintering, part of the conductive filler was still partially present within the ceramic matrix although some zirconium carbide was also formed.V.M. Sglavo and M. Biesuz kindly acknowledge the support from the Italian Ministry of University and Research (MIUR) within the programs PRIN2017 - 2017FCFYHK“DIRECTBIOPOWER” and Departments of Excellence 2018–2022 (DII-UNITN). M. Biesuz kindly acknowledge thesupport from MIUR within the programs PRIN2017 - 2017PMR932 “Nanostructured Porous Ceramics for Environmental and EnergyApplications”ElsevierMinistero dell'Istruzione, dell'Università e della RicercaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/236489reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.ceramint.2020.06.008Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2364892026-05-22T06:33:51Z
dc.title.none.fl_str_mv Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
title Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
spellingShingle Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
Fele, Giuseppe
Ceramic composite
Cubic zirconia
Graphene nano-platelets
title_short Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
title_full Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
title_fullStr Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
title_full_unstemmed Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
title_sort Flash sintering of yttria-stabilized zirconia/graphene nano-platelets composite
dc.creator.none.fl_str_mv Fele, Giuseppe
Biesuz, Mattia
Bettotti, Paolo
Moreno, Rodrigo
Sglavo, Vincenzo M.
author Fele, Giuseppe
author_facet Fele, Giuseppe
Biesuz, Mattia
Bettotti, Paolo
Moreno, Rodrigo
Sglavo, Vincenzo M.
author_role author
author2 Biesuz, Mattia
Bettotti, Paolo
Moreno, Rodrigo
Sglavo, Vincenzo M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministero dell'Istruzione, dell'Università e della Ricerca
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Ceramic composite
Cubic zirconia
Graphene nano-platelets
topic Ceramic composite
Cubic zirconia
Graphene nano-platelets
description A ceramic composite was produced by mixing cubic zirconia with graphene nano-platelets. The samples were consolidated by flash sintering in argon atmosphere to avoid the oxidation of graphene at high temperature. The applied electrical field ranged between 50 V cm and 500 V cm, while the current density limit was set between 35 mA mm and 175 mA mm. The presence of the conductor filler reduced the onset flash temperature, and a good densification of the composite was obtained. Remarkably, the same level of densification was not possible on pure cubic zirconia samples (possessing the same geometry) as they got physically damaged at the flash ignition (likely due to internal temperature gradients). After sintering, part of the conductive filler was still partially present within the ceramic matrix although some zirconium carbide was also formed.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/236489
url http://hdl.handle.net/10261/236489
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.ceramint.2020.06.008
Sí
dc.rights.none.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:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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