The effects of composition and microstructure on compressive strength of Ag-Au nanoparticles

T Fedyaeva, S Mathesan, A Bisht, Z Liang, D Mordehai… - Acta Materialia, 2023 - Elsevier
Hemispherical nanoparticles of Ag-33 at.% Au and Ag-60 at.% Au alloys were fabricated by
solid state dewetting of Ag-Au bilayers deposited on a sapphire substrate. The in-situ …

In Situ Atomic-Scale Observation of 5-Fold Twin Formation in Nanoscale Crystal under Mechanical Loading

X Wang, S Zheng, C Deng, CR Weinberger… - Nano Letters, 2023 - ACS Publications
A 5-fold twin is usually observed in nanostructured metals after mechanical tests and/or
annealing treatment. However, the formation mechanism of a 5-fold twin has not been fully …

Microscopic deformation modes and impact of network anisotropy on the mechanical and electrical performance of five-fold twinned silver nanowire electrodes

NJ Schrenker, Z Xie, P Schweizer, M Moninger… - ACS …, 2020 - ACS Publications
Silver nanowire (AgNW) networks show excellent optical, electrical, and mechanical
properties, which make them ideal candidates for transparent electrodes in flexible and …

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 …

[HTML][HTML] The effect of loading axes on deformation behavior of Cu/Al multilayer

W Pang, K Xin, AS Liu, S Yu, X Feng - Physics Letters A, 2023 - Elsevier
The effect of loading axes on deformation behavior of Cu/Al multilayer is studied via
molecular dynamics. The yield strength under x-axis or y-axis loading parallel to interface is …

A molecular dynamics study on the mechanical properties of Fe–Ni alloy nanowires and their temperature dependence

J Chen, P Li, EE Lin - RSC advances, 2020 - pubs.rsc.org
Fe–Ni alloy nanowires are widely used in high-density magnetic memories and catalysts
due to their unique magnetic and electrochemical properties. Understanding the …

In Situ TEM tensile testing of bicrystals with tailored misorientation angles

MT Kiani, LT Gan, R Traylor, R Yang, CM Barr, K Hattar… - Acta Materialia, 2022 - Elsevier
Grain boundaries have complex structural features that influence strength, ductility and
fracture in metals and alloys. Grain boundary misorientation angle has been identified as a …

Mechanical properties of unidirectional nanoporous gold under compression

YY Zhang, L Zou, LZ Liu, H Xie, CH Li, HJ Jin - Acta Materialia, 2022 - Elsevier
Dealloyed nanoporous (NP) metals are expected to be stronger by more than one order of
magnitude than conventional porous metals of same porosity. However, the strengths of …

Laves phase crystal analysis (LaCA): Atomistic identification of lattice defects in C14 and C15 topologically close-packed phases

Z Xie, D Chauraud, E Bitzek, S Korte-Kerzel… - Journal of Materials …, 2021 - Springer
The identification of defects in crystal structures is crucial for the analysis of atomistic
simulations. Many methods to characterize defects that are based on the classification of …

A multiple site type nucleation model and its application to the probabilistic strength of Pd nanowires

S Nisany, D Mordehai - Metals, 2022 - mdpi.com
Pristine specimens yield plastically under high loads by nucleating dislocations. Since
dislocation nucleation is a thermally activated process, the so-called nucleation-controlled …