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Kim, Ju-Young
Robust Multifunctional Materials Lab
Research Interests
  • Flexible / stretchable devices, nano-mechanics, nanoporous metal, materials reliability

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Fundamental differences in mechanical behavior between two types of crystals at the nanoscale

DC FieldValueLanguage
dc.contributor.authorBrinckmann, Steffenko
dc.contributor.authorKim, Ju-Youngko
dc.contributor.authorGreer, Julia R.ko
dc.date.available2014-10-24T00:09:55Z-
dc.date.created2014-10-23ko
dc.date.issued200804ko
dc.identifier.citationPHYSICAL REVIEW LETTERS, v.100, no.15, pp.1 - 4ko
dc.identifier.issn0031-9007ko
dc.identifier.urihttp://scholarworks.unist.ac.kr/handle/201301/7629-
dc.identifier.urihttp://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=42449145543ko
dc.description.abstractWe present differences in the mechanical behavior of nanoscale gold and molybdenum single crystals. A significant strength increase is observed as the size is reduced to 100 nm. Both nanocrystals exhibit discrete strain bursts during plastic deformation. We postulate that they arise from significant differences in the dislocation behavior. Dislocation starvation is the predominant mechanism of plasticity in nanoscale fcc crystals, while junction formation and hardening characterize bcc plasticity. A statistical analysis of strain bursts is performed as a function of size and compared with stochastic models.ko
dc.description.statementofresponsibilityopen-
dc.languageENGko
dc.publisherAMER PHYSICAL SOCko
dc.subjectDISLOCATION DYNAMICS SIMULATIONSko
dc.subjectSINGLE-CRYSTALSko
dc.subjectPLASTICITY SIZEko
dc.subjectATOMISTIC SIMULATIONko
dc.subjectSTRAIN GRADIENTSko
dc.subjectFCC METALSko
dc.subjectTHIN-FILMSko
dc.subjectDEFORMATIONko
dc.subjectSCALEko
dc.subjectMOTIONko
dc.titleFundamental differences in mechanical behavior between two types of crystals at the nanoscaleko
dc.typeARTICLEko
dc.identifier.pid1136null
dc.identifier.rimsid17468ko
dc.identifier.scopusid2-s2.0-42449145543ko
dc.identifier.wosid000255117800037ko
dc.type.rimsAko
dc.description.wostc134*
dc.description.scopustc109*
dc.date.tcdate2015-05-06*
dc.date.scptcdate2014-10-23*
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.100.155502ko
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