Do twin boundaries always strengthen metal nanowires?

Y Zhang, H Huang - Nanoscale research letters, 2009 - Springer
nanowires goes up as twin spacing goes down. This article shows that twin boundaries do
not always strengthen nanowires… whether twin boundaries strengthen nanowires depends on …

Deformation mechanisms of face-centered-cubic metal nanowires with twin boundaries

AJ Cao, YG Wei, SX Mao - Applied physics letters, 2007 - pubs.aip.org
… properties of metal nanowires could be controlled by tailoring internal growth twin structures.
… This study demonstrates that the mechanical properties of metal nanowires can be …

In-situ TEM study of dislocation interaction with twin boundary and retraction in twinned metallic nanowires

G Cheng, S Yin, C Li, TH Chang, G Richter, H Gao… - Acta Materialia, 2020 - Elsevier
Metallic nanowires (NWs) with twin boundaries (TBs) running parallel to the NW length
direction exhibit unusual plastic strain recovery owing to the interaction of dislocations with TBs. …

Origin of size dependency in coherent-twin-propagation-mediated tensile deformation of noble metal nanowires

JH Seo, HS Park, Y Yoo, TY Seong, J Li, JP Ahn… - Nano …, 2013 - ACS Publications
… of a twin (the yield stress). The plateau stress–strain region that defines the twin propagation
stage (stage 2) appears due to the stress-induced propagation of the twin boundary along …

Influence of twin boundaries and sample dimensions on the mechanical behavior of Ag nanowires

H Zhao, H Yilmaz, CJ Williams, AS Eggeman… - Materials Science and …, 2022 - Elsevier
… both classes of nanowire studied with … nanowires showed no evidence for any characteristic
deformation structures associated with the twin boundaries running parallel to the nanowire

In situ observation of twin boundary sliding in single crystalline Cu nanowires

Y Yue, Q Zhang, X Zhang, Z Yang, P Yin, L Guo - Small, 2017 - Wiley Online Library
… behavior induced by twin boundary is still a controversy and there are many unsolved
problems about the role of the twin boundary. For example, can twin boundary assist the plasticity …

Role of five-fold twin boundary on the enhanced mechanical properties of fcc Fe nanowires

JY Wu, S Nagao, JY He, ZL Zhang - Nano letters, 2011 - ACS Publications
Metal nanowires tend to behave stiffer less than 60–100 nm. (3, 4, 6) Besides experimental
investigations, theoretical analyses and atomistic simulations also reached two opposite …

Plasticity of metal nanowires

CR Weinberger, W Cai - Journal of Materials Chemistry, 2012 - pubs.rsc.org
… of twin boundaries. Besides the bottom-up synthesis approaches mentioned above, metal
nanowires … free-standing metal thin films. All of the methods mentioned above generally create …

Microtwinning in template-synthesized single-crystal metal nanowires

J Wang, M Tian, TE Mallouk… - The Journal of Physical …, 2004 - ACS Publications
… The metallic nanowires used in this work were fabricated by electrodepositing metals (gold,
silver, and … A twin boundary across the wire is clearly present; the end portion of the tip is a …

Shape memory and pseudoelasticity in metal nanowires

HS Park, K Gall, JA Zimmerman - Physical Review Letters, 2005 - APS
… Below Tc, the wires partially reorient via spatially distributed twinning from h100i to h110i=f111g,
where twin boundaries in the nanowire separate h100i and h110i=f111g single crystals…