2021
DOI: 10.1103/physrevlett.126.235501
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Surface Triple Junctions Govern the Strength of a Nanoscale Solid

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Cited by 22 publications
(8 citation statements)
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“…At the same time, it decreases slightly for the random structure. It is owed to the presence of many TJs in the ordered structure, which can effectively suppress the GB activities [12,39] and result in the strengthening effect. As shown in Figure 6g-i, the TJ remains stable during plastic deformation, and the GB's activity is suppressed.…”
Section: Strengthening Of Homogeneous Nano-grained (Hng) Structurementioning
confidence: 99%
See 1 more Smart Citation
“…At the same time, it decreases slightly for the random structure. It is owed to the presence of many TJs in the ordered structure, which can effectively suppress the GB activities [12,39] and result in the strengthening effect. As shown in Figure 6g-i, the TJ remains stable during plastic deformation, and the GB's activity is suppressed.…”
Section: Strengthening Of Homogeneous Nano-grained (Hng) Structurementioning
confidence: 99%
“…However, the effects of TJs on strength were largely overlooked. Some researchers have also noticed the connection between TJs and dislocation nucleation [11,12] and GB activities, [13,14] which are essential factors in determining the strength of polycrystalline materials. By in situ compression of coarse-grained and nano-grained nanoporous gold samples in an electrochemical environment, [8] the effect of surface triple junction (STJ) on the strength of nanoporous gold was successfully decoupled from the GB and surface effects.…”
Section: Introductionmentioning
confidence: 99%
“…Even for those that do, BNP metals from RID are comprised of grains close to the size of the ligaments , unlike BNP Au, which inherits the grains of the Ag–Au precursor . The recrystallization likely originates from the incoherent interface; however, this is not unique to RID but instead common in dealloying when the lattice structures of scriptA and scriptA q scriptB differ substantially. , All the new ingredients await further investigations into the interface dynamics. However, I will avoid speculations with limited experimental support and focus this perspective on generalizing the dealloying theory while keeping in mind the differences.…”
Section: The Self-organizationmentioning
confidence: 99%
“…Eringen (1983) discussed the role of dislocations in strengthening or weakening crystals and the focus on grain boundaries. The findings of Y-Y Zhang (Zhang et al ., 2021) strongly suggest that the structure and chemistry at STJs should be considered in understanding the mechanical response of sub-100 nm scale materials.…”
Section: Introductionmentioning
confidence: 99%