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

doi:10.1021/nl2022306

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

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

181 Scopus citations

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 language	English (US)
Pages (from-to)	3499-3502
Number of pages	4
Journal	Nano letters
Volume	11
Issue number	8
DOIs	https://doi.org/10.1021/nl2022306
State	Published - Aug 10 2011

Keywords

deformation
gold
mechanical
nanowire
superplastic
tensile

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10.1021/nl2022306

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title = "Superplastic deformation of defect-free Au nanowires via coherent twin propagation",

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.",

keywords = "deformation, gold, mechanical, nanowire, superplastic, tensile",

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

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T1 - Superplastic deformation of defect-free Au nanowires via coherent twin propagation

AU - Seo, Jong Hyun

AU - Yoo, Youngdong

AU - Park, Na Young

AU - Yoon, Sang Won

AU - Lee, Hyoban

AU - Han, Sol

AU - Lee, Seok Woo

AU - Seong, Tae Yeon

AU - Lee, Seung Cheol

AU - Lee, Kon Bae

AU - Cha, Pil Ryung

AU - Park, Harold S.

AU - Kim, Bongsoo

AU - Ahn, Jae Pyoung

PY - 2011/8/10

Y1 - 2011/8/10

N2 - 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.

AB - 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.

KW - deformation

KW - gold

KW - mechanical

KW - nanowire

KW - superplastic

KW - tensile

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JO - Nano letters

JF - Nano letters

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ER -

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

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