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Author:

Wang, Lihua (Wang, Lihua.) (Scholars:王立华) | Zhang, Ze (Zhang, Ze.) | Ma, En (Ma, En.) | Han, X. D. (Han, X. D..) (Scholars:韩晓东)

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EI Scopus SCIE

Abstract:

A detailed in situ investigation of dislocation processes has been rare for nanograined materials with grain sized near or less than 10 nm. Here, we report a time-resolved and atomic-scale in situ transmission electron microscopy observation of the nucleation, motion, annihilation, and storage of full dislocations in nanograins with diameters less than similar to 10 nm. Annihilation of dislocation dipoles appears to be a major contributor to the reduction in dislocation density, in addition to annihilation at grain boundary sinks. The accumulation of a high density of dislocations inside nanograins is found to be possible when they are surrounded by neighboring grains. (c) 2011 American Institute of Physics. [doi: 10.1063/1.3549866]

Keyword:

Author Community:

  • [ 1 ] [Wang, Lihua]Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China
  • [ 2 ] [Zhang, Ze]Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China
  • [ 3 ] [Han, X. D.]Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Ze]Zhejiang Univ, Dept Mat Sci, Hangzhou 310008, Zhejiang, Peoples R China
  • [ 5 ] [Ma, En]Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA

Reprint Author's Address:

  • 王立华

    [Wang, Lihua]Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China

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Source :

APPLIED PHYSICS LETTERS

ISSN: 0003-6951

Year: 2011

Issue: 5

Volume: 98

4 . 0 0 0

JCR@2022

ESI Discipline: PHYSICS;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 48

SCOPUS Cited Count: 54

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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