CUED Publications database

Molecular dynamics investigation on the temperature dependence of the deformation mechanism of the polycrystalline silver nanowires

Zhao, JW and Cheng, N and Wang, XX and Yu, G and Durkan, C and Wang, N (2017) Molecular dynamics investigation on the temperature dependence of the deformation mechanism of the polycrystalline silver nanowires. Chinese Journal of Inorganic Chemistry, 34. pp. 43-54. ISSN 1001-4861

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Abstract

© 2018, Chinese Chemical Society. All rights reserved. Based on molecular dynamics simulations, the plastic deformation of columnar polycrystalline silver nanowires under uniaxial tension at different temperatures has been studied systematically. At a temperature below 200 K, the system with large grains deforms predominantly via the mechanism of dislocation slip, and the maximum yield strength remains relatively constant with temperature. When the simulation temperature is over 200 K, grain sliding gradually becomes the dominant deformation mechanism, especially for those samples with reduced grain size and the maximum yield strength shows a decrease with the increase of temperature. The temperature-dependence of the Hall-Petch relation has been discussed.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 15 Feb 2018 01:09
Last Modified: 15 Apr 2021 05:53
DOI: doi:10.11862/CJIC.2018.011