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


Twinned nanoporous gold with enhanced tensile strength

DC Field Value Language Gwak, Eun-Ji ko Jeon, Hansol ko Song, Eunji ko Kang, Na-Ri ko Kim, Ju-Young ko 2018-06-14T10:32:06Z - 2018-06-13 ko 2018-08 ko
dc.identifier.citation ACTA MATERIALIA, v.155, pp.253 - 261 ko
dc.identifier.issn 1359-6454 ko
dc.identifier.uri -
dc.description.abstract Enhancing tensile strength is crucial to increasing the applicability of nanoporous materials including nanoporous gold (np-Au) that show mechanical weakness because of their nanoporous structure despite other superior characteristics. We fabricated twinned and textured np-Au foils with an average twin spacing of 7.9 nm. The foils exhibit an ultimate tensile strength (UTS) of 87.5 MPa when the loading axis is normal to the twin boundaries. This UTS value is approximately three times greater than that for np-Au with rare twins of 27.4 MPa. The high UTS can be ascribed to the twin boundaries acting as effective barriers to dislocation slip, resulting in the strain-hardening of the load-bearing ligaments. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. ko
dc.language 영어 ko
dc.title Twinned nanoporous gold with enhanced tensile strength ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85048550186 ko
dc.identifier.wosid 000439675000023 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.actamat.2018.06.009 ko
dc.identifier.url ko
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