Mechanical strength characteristics of asymmetric tilt grain boundaries in graphene

Cited 53 time in webofscience Cited 0 time in scopus
  • Hit : 522
  • Download : 48
DC FieldValueLanguage
dc.contributor.authorHan, Jihoonko
dc.contributor.authorRyu, Seunghwako
dc.contributor.authorSohn, Dongwooko
dc.contributor.authorIm, Seyoungko
dc.date.accessioned2014-09-04T08:35:46Z-
dc.date.available2014-09-04T08:35:46Z-
dc.date.created2014-03-17-
dc.date.created2014-03-17-
dc.date.issued2014-03-
dc.identifier.citationCARBON, v.68, pp.250 - 257-
dc.identifier.issn0008-6223-
dc.identifier.urihttp://hdl.handle.net/10203/190073-
dc.description.abstractWe investigate the ultimate strengths and failure types of asymmetric tilt grain boundaries (GBs) with various tilt angles with the aid of molecular dynamics simulations and analytic theory. The tensile strength of armchair-oriented graphene GBs shows a tendency to increase as the misorientation angle rises, while that of zigzag-oriented graphene GBs non-monotonically increases. The overall strength enhancement and weakening behaviors can be explained by a continuum stress analysis of pentagon-heptagon defects along GBs. Nevertheless, full atomistic analyses are required to predict the exact bonds from which mechanical failure initiate. Two different fracture types are observed in our studies; one with cracks growing along the GB and another with cracks growing away from the GB. Detailed understanding of the atomic arrangement along the GB, in addition to defect density, is necessary to ascertain the ultimate strength and rupture process of GBs.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectPOLYCRYSTALLINE GRAPHENE-
dc.subjectMOLECULAR-DYNAMICS-
dc.subjectGAS SENSOR-
dc.subjectTRANSPORT-
dc.subjectMEMBRANES-
dc.subjectFRACTURE-
dc.subjectSIMULATIONS-
dc.subjectTEMPERATURE-
dc.subjectDEFECTS-
dc.titleMechanical strength characteristics of asymmetric tilt grain boundaries in graphene-
dc.typeArticle-
dc.identifier.wosid000330814200024-
dc.identifier.scopusid2-s2.0-84891561108-
dc.type.rimsART-
dc.citation.volume68-
dc.citation.beginningpage250-
dc.citation.endingpage257-
dc.citation.publicationnameCARBON-
dc.identifier.doi10.1016/j.carbon.2013.10.085-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorRyu, Seunghwa-
dc.contributor.localauthorIm, Seyoung-
dc.contributor.nonIdAuthorSohn, Dongwoo-
dc.type.journalArticleArticle-
dc.subject.keywordPlusPOLYCRYSTALLINE GRAPHENE-
dc.subject.keywordPlusMOLECULAR-DYNAMICS-
dc.subject.keywordPlusGAS SENSOR-
dc.subject.keywordPlusTRANSPORT-
dc.subject.keywordPlusMEMBRANES-
dc.subject.keywordPlusFRACTURE-
dc.subject.keywordPlusSIMULATIONS-
dc.subject.keywordPlusTEMPERATURE-
dc.subject.keywordPlusDEFECTS-
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 53 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0