Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets

[EN] Composites of 8 mol.% yttria-stabilized zirconia (8YSZ) with graphene nanoplatelets (GNP) have been pointed as alternative interconnectors in SOFC due to their mixed ionic-electronic conduction. Here we show that GNP addition provides rising crack-resistance behavior, with long crack toughness...

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Autores: Gómez-Gómez, Alberto, Ramírez, Cristina, Llorente, Javier, García, Ana, Moreno, Pablo, Reveron, Helen, Chevalier, Jérôme, Osendi, María Isabel, Belmonte, Manuel, Miranzo López, Pilar
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/202088
Acceso en línea:http://hdl.handle.net/10261/202088
Access Level:acceso abierto
Palabra clave:Zirconia
Graphene nanoplatelets
Composites
R-curve
Thermal conductivity
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spelling Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplateletsGómez-Gómez, AlbertoRamírez, CristinaLlorente, JavierGarcía, AnaMoreno, PabloReveron, HelenChevalier, JérômeOsendi, María IsabelBelmonte, ManuelMiranzo López, PilarZirconiaGraphene nanoplateletsCompositesR-curveThermal conductivity[EN] Composites of 8 mol.% yttria-stabilized zirconia (8YSZ) with graphene nanoplatelets (GNP) have been pointed as alternative interconnectors in SOFC due to their mixed ionic-electronic conduction. Here we show that GNP addition provides rising crack-resistance behavior, with long crack toughness up to 78% higher than that of 8YSZ, also improving its thermal conductivity (up to 6 times for the in-plane direction). Toughness versus crack length is measured for 7 and 11 vol.% of GNP using single edge V-notched beam technique and ultrashort pulsed laser notching; and thermal behavior is analyzed by the laser flash method. Materials also have highly anisotropic coefficient of thermal expansion. These properties contribute to enhance their performance under the harsh operating conditions of SOFC, as thermal residual stresses could be reduced while significantly improving the system mechanical stability. Moreover, the heat transfer may be enhanced especially along the interface direction which would increase the system efficiency.This work was supported by Spanish project RTI2018-095052-B-I00, Ministerio de Ciencia, Innovacion y Universidades, Spain (MCIU/AEI/FEDER, UE). AG and PM acknowledge support from Ministerio de Economía, Industria y Competitividad, Spanish government (Project FIS2017- 87970-R) and Junta de Castilla y León, Spain (Project SA287P18). C. R. thanks the financial support by MCIU under contract IJCI-2017-34724 of “Juan de la Cierva” Program.Peer reviewedElsevier BVMinisterio de Economía y Competitividad (España)Agencia Estatal de Investigación (España)Agencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/202088reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095052-B-I00RTI2018-095052-B-I00/AEI/10.13039/501100011033info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FIS2017-87970-RFIS2017-87970-R/AEI/10.13039/501100011033https://doi.org/10.1016/j.jeurceramsoc.2019.12.016Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2020882026-05-22T06:33:51Z
dc.title.none.fl_str_mv Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
title Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
spellingShingle Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
Gómez-Gómez, Alberto
Zirconia
Graphene nanoplatelets
Composites
R-curve
Thermal conductivity
title_short Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
title_full Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
title_fullStr Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
title_full_unstemmed Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
title_sort Improved crack resistance and thermal conductivity of cubic zirconia containing graphene nanoplatelets
dc.creator.none.fl_str_mv Gómez-Gómez, Alberto
Ramírez, Cristina
Llorente, Javier
García, Ana
Moreno, Pablo
Reveron, Helen
Chevalier, Jérôme
Osendi, María Isabel
Belmonte, Manuel
Miranzo López, Pilar
author Gómez-Gómez, Alberto
author_facet Gómez-Gómez, Alberto
Ramírez, Cristina
Llorente, Javier
García, Ana
Moreno, Pablo
Reveron, Helen
Chevalier, Jérôme
Osendi, María Isabel
Belmonte, Manuel
Miranzo López, Pilar
author_role author
author2 Ramírez, Cristina
Llorente, Javier
García, Ana
Moreno, Pablo
Reveron, Helen
Chevalier, Jérôme
Osendi, María Isabel
Belmonte, Manuel
Miranzo López, Pilar
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Agencia Estatal de Investigación (España)
Agencia Estatal de Investigación (España)
Ministerio de Ciencia, Innovación y Universidades (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Zirconia
Graphene nanoplatelets
Composites
R-curve
Thermal conductivity
topic Zirconia
Graphene nanoplatelets
Composites
R-curve
Thermal conductivity
description [EN] Composites of 8 mol.% yttria-stabilized zirconia (8YSZ) with graphene nanoplatelets (GNP) have been pointed as alternative interconnectors in SOFC due to their mixed ionic-electronic conduction. Here we show that GNP addition provides rising crack-resistance behavior, with long crack toughness up to 78% higher than that of 8YSZ, also improving its thermal conductivity (up to 6 times for the in-plane direction). Toughness versus crack length is measured for 7 and 11 vol.% of GNP using single edge V-notched beam technique and ultrashort pulsed laser notching; and thermal behavior is analyzed by the laser flash method. Materials also have highly anisotropic coefficient of thermal expansion. These properties contribute to enhance their performance under the harsh operating conditions of SOFC, as thermal residual stresses could be reduced while significantly improving the system mechanical stability. Moreover, the heat transfer may be enhanced especially along the interface direction which would increase the system efficiency.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/202088
url http://hdl.handle.net/10261/202088
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095052-B-I00
RTI2018-095052-B-I00/AEI/10.13039/501100011033
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FIS2017-87970-R
FIS2017-87970-R/AEI/10.13039/501100011033
https://doi.org/10.1016/j.jeurceramsoc.2019.12.016
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
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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