Coupled effect of sample size and grain size in polycrystalline Al nanowires
Coupled effect of sample size and grain size in polycrystalline Al nanowires
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多晶铝纳米线中样品尺寸和晶粒尺寸的耦合效应
DOI：
10.1016/j.scriptamat.2013.01.029
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发表时间：
2013-05
影响因子：
6
通讯作者：
Huang, Minsheng
中科院分区：
文献类型：
--
作者：
Zhu, Yaxin;Li, Zhenhuan;Huang, Minsheng
The coupled effects of sample size and grain size and the plastic deformation mechanisms of polycrystalline Al nanowires were investigated by molecular dynamics. With the number of grains across the diameter increasing from one to four, the 5 nm grain size nanowires showed a “smaller is stronger” effect, the 10 nm grained nanowires did not show any significant size effect, while the 20 nm grained nanowires showed a “smaller is weaker” effect. Different size effects are induced by competition between surface-mediated and grain boundary-mediated deformations.
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作者：
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影响因子：
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