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dc.rights.licenseopenen_US
dc.relation.isnodouble4e920c1f-9a54-4dee-ba62-95e04a986028*
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
hal.structure.identifierLaboratoire de l'intégration, du matériau au système [IMS]
dc.contributor.authorFARBOS, Baptiste
hal.structure.identifierLaboratoire de l'intégration, du matériau au système [IMS]
dc.contributor.authorDA COSTA, Jean-Pierre
ORCID: 0000-0003-2390-0047
IDREF: 060561459
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorVIGNOLES, Gerard
IDREF: 070191875
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorLEYSSALE, Jean-Marc
dc.date.accessioned2021-07-21T09:34:02Z
dc.date.available2021-07-21T09:34:02Z
dc.date.issued2015-11-01
dc.identifier.issn0008-6223en_US
dc.identifier.urioai:crossref.org:10.1016/j.carbon.2015.06.060
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/110143
dc.description.abstractEnWe report on the elastic properties of high-textured laminar pyrocarbons (PyCs) as obtained at the nanoscale using atomistic simulations on realistic models of the rough laminar (RL) PyC, the regenerative laminar (ReL) PyC, and the ReL PyC heat treated at temperatures up to 1700 °C. The purely longitudinal ( and ) and transverse ( and ) elastic properties of such materials have values of around 50–75% of those found for graphite. Conversely, cross longitudinal-transverse properties ( and ) are much larger in PyCs than in graphite (up to around one order of magnitude for ). Our results also show that stiffness decreases with the hydrogen content, that longitudinal properties increase with the extent of graphene domains and decrease with the misorientation of the layers, and that transverse and cross properties significantly increase with the amount of interlayer cross-links present in the materials. Comparison to known experimental data indicates that texture effect at superior scales play an important role in the effective macroscopic elasticity constants. Finally, from a materials perspective and in agreement with the structural evolution, the elastic properties of the ReL PyC evolve with heat treatment towards those of the RL PyC.
dc.language.isoENen_US
dc.sourcecrossref
dc.title.enNanoscale elasticity of highly anisotropic pyrocarbons
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.carbon.2015.06.060en_US
dc.subject.halChimie/Matériauxen_US
bordeaux.journalCarbonen_US
bordeaux.page285-294en_US
bordeaux.volume94en_US
bordeaux.hal.laboratoriesLaboratoire des Composites Thermo Structuraux (LCTS) - UMR 5801en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.institutionCEAen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-01717025
hal.exportfalse
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