Detwinning-induced reduction in ductility of twinned copper nanowires

Zhang, Jun Jie; Xu, Fangda; Yan, Yongda; Sun, Tao

doi:10.1007/s11434-012-5575-3

Cited by 16 publications

(3 citation statements)

References 29 publications

(31 reference statements)

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“…The curves are superposed in the elastic region, indicating that TBs have no influence on the elastic modulus of W NWs. This results is consistent with those reported in twinned Cu and InP NWs 25,34 . The elastic modulus of 360 GPa of W NWs agrees well with that of 362 GPa reported in the literature 35 .…”

Section: In Situ Tem Tensile Testssupporting

confidence: 93%

Effect of twin boundaries on the strength of body-centered cubic tungsten nanowires

Cui

Ma²,

Chen³

et al. 2023

Materials Science and Engineering: A

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Section: In Situ Tem Tensile Testssupporting

confidence: 93%

Effect of twin boundaries on the strength of body-centered cubic tungsten nanowires

Cui

Ma²,

Chen³

et al. 2023

Materials Science and Engineering: A

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“…It is clearly seen from Figure 3b that there are two mechanical TBs inclining to each other formed in the template on the left side. The formation of mechanical TBs, i.e., deformation twinning, is an important deformation mode of 1D nanostructures with large surface-to-volume ratio under external load [23-25]. TB is a special kind of planar defects whose lattice structures exhibit mirror symmetries across the boundary.…”

Section: Resultsmentioning

confidence: 99%

Template-assisted nanostructure fabrication by glancing angle deposition: a molecular dynamics study

et al. 2013

Self Cite

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In the present work, we investigate the pre-existing template-assisted glancing angle deposition of Al columnar structures on Cu substrate by means of molecular dynamics simulations, with a focus on examining the effect of deposition-induced template deformation on the morphologies of the fabricated structures. Our simulations demonstrate that the pre-existing templates significantly intensify the shadowing effect, which thus facilitates the formation of columnar structures under small deposition flux. The underlying deformation modes of the templates under different deposition configurations are analyzed and are correlated to the geometrical characteristics of the columnar structures. It is found that the template height-dependent deformation behavior of the templates strongly influences the morphologies of the fabricated columnar structures. Our findings provide design and fabrication guidelines for the fabrication of one-dimensional nanostructures by the template-assisted deposition technique.

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“…[11][12][13][14] Zhang et al concluded that the distance between twin boundaries is smaller, the stress of the nanowires in the plastic deformation zone is lower. [15] Cao et al studied the deformation mechanism of twinned Cu nanowires in the <111> crystal orientation and found that the yield stress increases with the decrease in the twin boundary spacing. [16] Ni-Co alloys are more and more widely used in many industries.…”

Section: Introductionmentioning

confidence: 99%

Effects of Twin Boundary on Tensile Properties and Deformation Mechanism of Ni–Co Alloy Nanopillars

Gao

Chen

Pei

et al. 2021

Physica Status Solidi (b)

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The influence mechanism of twin boundary in Ni–Co alloys is responsible for their deformation and technological applications. Herein, the uniaxial tensile loading of the Ni–Co single crystal nanopillars with twin boundaries is carried out by simulation. When the number of twin boundaries exceeds two layers, the effect of twinning boundary on dislocation is obvious, and the migration and reaction of twin boundaries lead to an increase in the number of dislocations accommodated inside, which is conducive to increasing the strength of the nanopillars. At low temperature, the dislocations are easy to penetrate and expand the twin grain boundary, while at high temperature, due to the aggravation of thermal motion, the resulting dislocations decrease. Meantime, the reaction between dislocations and twin boundaries leads to the disappearance of some original twin grain boundaries. As the strain rate increases, the main deformation mode of the nanopillar changes from the reaction of dislocation and twin boundary to twin boundaries migration. When the volume ratio of grain boundary void is less than 2.3%, the plastic deformation fluctuation is relatively stable. Nevertheless, when the volume ratio is greater than or equal to 2.3%, the fluctuation of the plastic deformation stage decreases rapidly.

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Detwinning-induced reduction in ductility of twinned copper nanowires

Cited by 16 publications

References 29 publications

Effect of twin boundaries on the strength of body-centered cubic tungsten nanowires

Effect of twin boundaries on the strength of body-centered cubic tungsten nanowires

Template-assisted nanostructure fabrication by glancing angle deposition: a molecular dynamics study

Effects of Twin Boundary on Tensile Properties and Deformation Mechanism of Ni–Co Alloy Nanopillars

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