Reveal the size effect on the plasticity of ultra-small sized Ag nanowires with in situ atomic-scale microscopy

Kong, Deli, Sun, Shiduo, Xin, Tianjiao, Xiao, Lirong, Sha, Xuechao, Lu, Yan, Mao, Shengcheng, Zou, Jin, Wang, Lihua and Han, Xiaodong (2016) Reveal the size effect on the plasticity of ultra-small sized Ag nanowires with in situ atomic-scale microscopy. Journal of Alloys and Compounds, 676 377-382. doi:10.1016/j.jallcom.2016.03.199


Author Kong, Deli
Sun, Shiduo
Xin, Tianjiao
Xiao, Lirong
Sha, Xuechao
Lu, Yan
Mao, Shengcheng
Zou, Jin
Wang, Lihua
Han, Xiaodong
Title Reveal the size effect on the plasticity of ultra-small sized Ag nanowires with in situ atomic-scale microscopy
Formatted title
Reveal the size effect on the plasticity of ultra-small sized Ag nanowires with in situ atomic-scale microscopy
Journal name Journal of Alloys and Compounds   Check publisher's open access policy
ISSN 0925-8388
1873-4669
Publication date 2016-08-15
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.jallcom.2016.03.199
Open Access Status Not Open Access
Volume 676
Start page 377
End page 382
Total pages 6
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2017
Language eng
Formatted abstract
Revealing the atomic-scale deformation mechanisms of metallic nanowires (NWs) is important for their practical application. However, there are few reports providing direct atomic-scale experimental elucidation on those metallic NWs. Here, we conduct serial in situ deformation tests on silver (Ag) nanowires with diameters of 3–11 nm. The in situ atomic-scale observations reveal a transition in the deformation mechanism with a decrease in the diameter of Ag NWs. For the [5View the MathML source4] and [001] oriented NWs with diameters of ∼11 nm, the plastic deformation is dominated by full dislocation that involves leading and trailing partial dislocations, whereas the full or extended dislocations are rarely observed in the NWs with diameters in the range of ∼ 5–8 nm, and their plastic deformation is governed by SF generation and annihilation. Moreover, for the [View the MathML source11] oriented NWs, 60° mixed and pure edge dislocations are frequently observed when the diameter is approximately 5 nm and the plastic deformation is accommodated by relative slip between two adjacent {111} planes for NWs with diameters below ∼ 3 nm. These results indicate that the plastic deformation not only depends on the size of NWs but also can be significantly impacted by the loading orientation.
Keyword Silver nanowire
Size effect
In situ
Plasticity
Atomic-scale
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Centre for Microscopy and Microanalysis Publications
 
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