Nano Archive

Strengthening in gold nanopillars with nanoscale twins

Afanasyev, Konstantin A. and Sansoz, Frederic (2007) Strengthening in gold nanopillars with nanoscale twins. NANO LETTERS, 7 (7). pp. 2056-2062.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/nl070959l

Abstract

The role of growth twin boundaries on the slip activity of gold nanopillars under uniaxial compression was investigated by molecular dynamics simulation. A new type of size-dependent strengthening was found in twinned gold nanopillars. Strengthening resulted from slip arrests in the form of Lomer−Cottrell locks at the intersection of partial dislocations and twin boundaries. The significance of such phenomenon was found to depend on the twin size. These findings could help engineers design tunable mechanical properties in nanowires by interfacial plasticity.

Item Type:Article
Subjects:Physical Science > Nanophysics
Engineering > Nanotechnology applications in civil engineering
Material Science > Nanostructured materials
ID Code:2262
Deposited By:Anuj Seth
Deposited On:28 May 2009 13:48
Last Modified:28 May 2009 13:48

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