Journal article
Effect of surface energy on size-dependent deformation twinning of defect-free Au nanowires
Nanoscale, v 7(38), pp 15657-15664
01 Jan 2015
PMID: 26350050
Abstract
In this study, we report the size-dependent transition of deformation twinning studied using in situ SEM/TEM tensile testing of defect-free [110] Au nanowires/ribbons with controlled geometry. The critical dimension below which the ordinary plasticity transits to deformation twinning is experimentally determined to be similar to 170 nm for Au nanowires with equilateral cross-sections. Nanoribbons with a fixed thickness but increased width-to-thickness ratios (9 : 1) were also studied to show that an increase in the surface energy due to the crystal re-orientation suppresses the deformation twinning. Molecular dynamics simulations confirmed that the transition from partial dislocation mediated plasticity to perfect dislocation plasticity with increase in the width-to-thickness ratio is due to the effect of the surface energy.
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Details
- Title
- Effect of surface energy on size-dependent deformation twinning of defect-free Au nanowires
- Creators
- Byungil Hwang - Korea Advanced Institute of Science and TechnologyMijeong Kang - Korea Advanced Institute of Science and TechnologySubin Lee - Pohang University of Science and TechnologyChristopher R. Weinberger - Drexel UniversityPhillip Loya - Rice UniversityJun Lou - Rice UniversitySang Ho Oh - Pohang University of Science and TechnologyBongsoo Kim - Korea Advanced Institute of Science and TechnologySeung Min Han - Korea Advanced Institute of Science and TechnologySangil Lee - Psychology
- Publication Details
- Nanoscale, v 7(38), pp 15657-15664
- Publisher
- Royal Soc Chemistry
- Number of pages
- 8
- Grant note
- FA9550-13-1-0084 / AFOSR; United States Department of Defense; Air Force Office of Scientific Research (AFOSR) NRF-2012M3A2A1051686 / Public Welfare Safety Program 2014R1A4A1003712 / National Research Foundation (NRF) of Korea; National Research Foundation of Korea 2013R1A2A2A01069073 / NRF 2014063701 / Ministry of Science, ICT and Future Planning as Global Frontier Project (CAMM)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Psychological and Brain Sciences (Psychology)
- Web of Science ID
- WOS:000361834100014
- Scopus ID
- 2-s2.0-84942636263
- Other Identifier
- 991019173545904721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied