Superplastic deformation of defect-free Au nanowires via coherent twin propagation

Jong Hyun Seo, Youngdong Yoo, Na Young Park, Sang Won Yoon, Hyoban Lee, Sol Han, Seok Woo Lee, Tae Yeon Seong, Seung Cheol Lee, Kon Bae Lee, Pil Ryung Cha, Harold S. Park, Bongsoo Kim, Jae Pyoung Ahn

Research output: Contribution to journalArticle

149 Citations (Scopus)

Abstract

We report that defect-free Au nanowires show superplasticity on tensile deformation. Evidences from high-resolution electron microscopes indicated that the plastic deformation proceeds layer-by-layer in an atomically coherent fashion to a long distance. Furthermore, the stress-strain curve provides full interpretation of the deformation. After initial superelastic deformation, the nanowire shows superplastic deformation induced by coherent twin propagation, completely reorientating the crystal from <110> to <100>. Uniquely well-disciplined and long-propagating atomic movements deduced here are ascribed to the superb crystallinity as well as the radial confinement of the Au nanowires.

Original languageEnglish
Pages (from-to)3499-3502
Number of pages4
JournalNano Letters
Volume11
Issue number8
DOIs
Publication statusPublished - 2011 Aug 10

Keywords

  • deformation
  • gold
  • mechanical
  • nanowire
  • superplastic
  • tensile

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Superplastic deformation of defect-free Au nanowires via coherent twin propagation'. Together they form a unique fingerprint.

  • Cite this

    Seo, J. H., Yoo, Y., Park, N. Y., Yoon, S. W., Lee, H., Han, S., Lee, S. W., Seong, T. Y., Lee, S. C., Lee, K. B., Cha, P. R., Park, H. S., Kim, B., & Ahn, J. P. (2011). Superplastic deformation of defect-free Au nanowires via coherent twin propagation. Nano Letters, 11(8), 3499-3502. https://doi.org/10.1021/nl2022306