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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

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dc.contributor.author Brinckmann, Steffen ko
dc.contributor.author Kim, Ju-Young ko
dc.contributor.author Greer, Julia R. ko
dc.date.available 2014-10-24T00:09:55Z -
dc.date.created 2014-10-23 ko
dc.date.issued 2008-04 -
dc.identifier.citation PHYSICAL REVIEW LETTERS, v.100, no.15, pp.1 - 4 ko
dc.identifier.issn 0031-9007 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/7629 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=42449145543 ko
dc.description.abstract We 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.statementofresponsibility open -
dc.language ENG ko
dc.publisher AMER PHYSICAL SOC ko
dc.subject DISLOCATION DYNAMICS SIMULATIONS ko
dc.subject SINGLE-CRYSTALS ko
dc.subject PLASTICITY SIZE ko
dc.subject ATOMISTIC SIMULATION ko
dc.subject STRAIN GRADIENTS ko
dc.subject FCC METALS ko
dc.subject THIN-FILMS ko
dc.subject DEFORMATION ko
dc.subject SCALE ko
dc.subject MOTION ko
dc.title Fundamental differences in mechanical behavior between two types of crystals at the nanoscale ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-42449145543 ko
dc.identifier.wosid 000255117800037 ko
dc.type.rims ART ko
dc.description.wostc 134 *
dc.description.scopustc 109 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-10-23 *
dc.identifier.doi 10.1103/PhysRevLett.100.155502 ko
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