Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets

The electrical discharge machining (EDM) performance of silicon carbide (SiC) ceramics containing graphene nanoplatelets (GNPs) is investigated for the first time. Under fine machining conditions, the material removal rate (MRR) dramatically increases up to 186% when 20 vol.% of GNPs are added to Si...

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Detalhes bibliográficos
Autores: Zeller, Florian, Müller, Claas, Miranzo López, Pilar, Belmonte, Manuel
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/189594
Acesso em linha:http://hdl.handle.net/10261/189594
Access Level:acceso abierto
Palavra-chave:Machining
Ceramic matrix composites
Silicon carbide
Microcomponents
Graphene
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spelling Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplateletsZeller, FlorianMüller, ClaasMiranzo López, PilarBelmonte, ManuelMachiningCeramic matrix compositesSilicon carbideMicrocomponentsGrapheneThe electrical discharge machining (EDM) performance of silicon carbide (SiC) ceramics containing graphene nanoplatelets (GNPs) is investigated for the first time. Under fine machining conditions, the material removal rate (MRR) dramatically increases up to 186% when 20 vol.% of GNPs are added to SiC ceramics, leading to reductions on the electrode wear rate of 132%. The EDMed nanocomposites exhibit surface roughness ≤ 0.8 μm. This outstanding EDM response of the graphene nanocomposites as compared to monolithic SiC is explained by their enhanced transport properties, establishing a direct dependence of MRR with the electrical conductivity. EDM performance of the nanocomposites also depends on the testing direction for materials with low GNPs connectivity (≤ 10 vol.%). Melting/evaporation are the main removal mechanisms, thermal spalling also operating for low thermal conducting materials. The employ of EDM on SiC/graphene nanocomposites allows machining microparts with a fine dimensional precision, opening new opportunities for SiC-based microcomponents.This work was supported by the Spanish Government (MAT2012-32944 and MAT2015-67437-R projects).Peer ReviewedElsevierMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920172019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/189594reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-67437-RSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1895942026-05-22T06:33:51Z
dc.title.none.fl_str_mv Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
title Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
spellingShingle Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
Zeller, Florian
Machining
Ceramic matrix composites
Silicon carbide
Microcomponents
Graphene
title_short Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
title_full Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
title_fullStr Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
title_full_unstemmed Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
title_sort Exceptional micromachining performance of silicon carbide ceramics by adding graphene nanoplatelets
dc.creator.none.fl_str_mv Zeller, Florian
Müller, Claas
Miranzo López, Pilar
Belmonte, Manuel
author Zeller, Florian
author_facet Zeller, Florian
Müller, Claas
Miranzo López, Pilar
Belmonte, Manuel
author_role author
author2 Müller, Claas
Miranzo López, Pilar
Belmonte, Manuel
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Machining
Ceramic matrix composites
Silicon carbide
Microcomponents
Graphene
topic Machining
Ceramic matrix composites
Silicon carbide
Microcomponents
Graphene
description The electrical discharge machining (EDM) performance of silicon carbide (SiC) ceramics containing graphene nanoplatelets (GNPs) is investigated for the first time. Under fine machining conditions, the material removal rate (MRR) dramatically increases up to 186% when 20 vol.% of GNPs are added to SiC ceramics, leading to reductions on the electrode wear rate of 132%. The EDMed nanocomposites exhibit surface roughness ≤ 0.8 μm. This outstanding EDM response of the graphene nanocomposites as compared to monolithic SiC is explained by their enhanced transport properties, establishing a direct dependence of MRR with the electrical conductivity. EDM performance of the nanocomposites also depends on the testing direction for materials with low GNPs connectivity (≤ 10 vol.%). Melting/evaporation are the main removal mechanisms, thermal spalling also operating for low thermal conducting materials. The employ of EDM on SiC/graphene nanocomposites allows machining microparts with a fine dimensional precision, opening new opportunities for SiC-based microcomponents.
publishDate 2017
dc.date.none.fl_str_mv 2017
2019
2019
2019
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/10261/189594
url http://hdl.handle.net/10261/189594
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-67437-R
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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