Small size strength dependence on dislocation nucleation

J. D. Nowak; A. R. Beaber; O. Ugurlu; Steven L Girshick; William W Gerberich

doi:10.1016/j.scriptamat.2010.01.026

Small size strength dependence on dislocation nucleation

J. D. Nowak, A. R. Beaber, O. Ugurlu, Steven L Girshick, William W Gerberich

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Abstract

We use the ex situ and in situ deformation of silicon nano-spheres to investigate the mechanism(s) responsible for hardening, which consequently affects strength. With spheres in the 40-400 nm range, an inverse strength dependence was found. Applicability of linear, forest and/or exhaustion hardening are explored with the hypothesis that all three are of the same class limited by dislocation nucleation.

Original language	English (US)
Pages (from-to)	819-822
Number of pages	4
Journal	Scripta Materialia
Volume	62
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2010.01.026
State	Published - Jun 2010

Keywords

In situ TEM
Nano-indentation
Plastic deformation
Silicon

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10.1016/j.scriptamat.2010.01.026

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title = "Small size strength dependence on dislocation nucleation",

abstract = "We use the ex situ and in situ deformation of silicon nano-spheres to investigate the mechanism(s) responsible for hardening, which consequently affects strength. With spheres in the 40-400 nm range, an inverse strength dependence was found. Applicability of linear, forest and/or exhaustion hardening are explored with the hypothesis that all three are of the same class limited by dislocation nucleation.",

keywords = "In situ TEM, Nano-indentation, Plastic deformation, Silicon",

author = "Nowak, {J. D.} and Beaber, {A. R.} and O. Ugurlu and Girshick, {Steven L} and Gerberich, {William W}",

year = "2010",

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T1 - Small size strength dependence on dislocation nucleation

AU - Nowak, J. D.

AU - Beaber, A. R.

AU - Ugurlu, O.

AU - Girshick, Steven L

AU - Gerberich, William W

PY - 2010/6

Y1 - 2010/6

N2 - We use the ex situ and in situ deformation of silicon nano-spheres to investigate the mechanism(s) responsible for hardening, which consequently affects strength. With spheres in the 40-400 nm range, an inverse strength dependence was found. Applicability of linear, forest and/or exhaustion hardening are explored with the hypothesis that all three are of the same class limited by dislocation nucleation.

AB - We use the ex situ and in situ deformation of silicon nano-spheres to investigate the mechanism(s) responsible for hardening, which consequently affects strength. With spheres in the 40-400 nm range, an inverse strength dependence was found. Applicability of linear, forest and/or exhaustion hardening are explored with the hypothesis that all three are of the same class limited by dislocation nucleation.

KW - In situ TEM

KW - Nano-indentation

KW - Plastic deformation

KW - Silicon

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EP - 822

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Small size strength dependence on dislocation nucleation

Abstract

Keywords

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