Strengthening effect of single-atomic-layer graphene in metal-graphene nanolayered composites

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dc.contributor.authorKim, Youbinko
dc.contributor.authorLee, Jinsupko
dc.contributor.authorYeom, Min Sunko
dc.contributor.authorShin, Jae Wonko
dc.contributor.authorKim, Hyungjunko
dc.contributor.authorCui, Yiko
dc.contributor.authorKysar, Jeffrey W.ko
dc.contributor.authorHone, Jamesko
dc.contributor.authorJung, Yousungko
dc.contributor.authorJeon, Seokwooko
dc.contributor.authorHan, Seung Min J.ko
dc.date.accessioned2016-07-04T02:43:48Z-
dc.date.available2016-07-04T02:43:48Z-
dc.date.created2013-09-30-
dc.date.created2013-09-30-
dc.date.issued2013-07-
dc.identifier.citationNATURE COMMUNICATIONS, v.4-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10203/208976-
dc.description.abstractGraphene is a single-atomic-layer material with excellent mechanical properties and has the potential to enhance the strength of composites. Its two-dimensional geometry, high intrinsic strength and modulus can effectively constrain dislocation motion, resulting in the significant strengthening of metals. Here we demonstrate a new material design in the form of a nanolayered composite consisting of alternating layers of metal (copper or nickel) and monolayer graphene that has ultra-high strengths of 1.5 and 4.0 GPa for copper-graphene with 70-nm repeat layer spacing and nickel-graphene with 100-nm repeat layer spacing, respectively. The ultra-high strengths of these metal-graphene nanolayered structures indicate the effectiveness of graphene in blocking dislocation propagation across the metal-graphene interface. Ex situ and in situ transmission electron microscopy compression tests and molecular dynamics simulations confirm a build-up of dislocations at the graphene interface.-
dc.languageEnglish-
dc.publisherNATURE PUBLISHING GROUP-
dc.subjectMECHANISMS-
dc.subjectINTERFACES-
dc.subjectSCALE-
dc.subjectNANOCOMPOSITES-
dc.subjectMULTILAYERS-
dc.subjectDISPERSION-
dc.subjectGRAPHITE-
dc.titleStrengthening effect of single-atomic-layer graphene in metal-graphene nanolayered composites-
dc.typeArticle-
dc.identifier.wosid000323715700009-
dc.identifier.scopusid2-s2.0-84880085208-
dc.type.rimsART-
dc.citation.volume4-
dc.citation.publicationnameNATURE COMMUNICATIONS-
dc.identifier.doi10.1038/ncomms3114-
dc.contributor.localauthorKim, Hyungjun-
dc.contributor.localauthorJung, Yousung-
dc.contributor.localauthorJeon, Seokwoo-
dc.contributor.localauthorHan, Seung Min J.-
dc.contributor.nonIdAuthorKim, Youbin-
dc.contributor.nonIdAuthorLee, Jinsup-
dc.contributor.nonIdAuthorYeom, Min Sun-
dc.contributor.nonIdAuthorShin, Jae Won-
dc.contributor.nonIdAuthorCui, Yi-
dc.contributor.nonIdAuthorKysar, Jeffrey W.-
dc.contributor.nonIdAuthorHone, James-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusMECHANISMS-
dc.subject.keywordPlusINTERFACES-
dc.subject.keywordPlusSCALE-
dc.subject.keywordPlusNANOCOMPOSITES-
dc.subject.keywordPlusMULTILAYERS-
dc.subject.keywordPlusDISPERSION-
dc.subject.keywordPlusGRAPHITE-
dc.subject.keywordPlusDYNAMICS-
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