Source-controlled yield and hardening of Cu (1 0 0) studied by in situ transmission electron microscopy
In the present work we investigate the mechanical properties of multiple slip oriented single
crystal Cu (100) compression samples to shed light on size-dependent yield and hardening …
crystal Cu (100) compression samples to shed light on size-dependent yield and hardening …
Emergence of strain-rate sensitivity in Cu nanopillars: Transition from dislocation multiplication to dislocation nucleation
We demonstrate strain-rate sensitivity emerging in single-crystalline Cu nanopillars with
diameters ranging from 75 up to 500nm through uniaxial deformation experiments …
diameters ranging from 75 up to 500nm through uniaxial deformation experiments …
Impact of instrumental constraints and imperfections on the dislocation structure in micron-sized Cu compression pillars
In situ micro-Laue diffraction was used to study the plasticity in three 7μm, initially identical,
single-crystalline Cu pillars during compression. Movements of the Laue spot as well as …
single-crystalline Cu pillars during compression. Movements of the Laue spot as well as …
A fundamental understanding of how dislocation densities affect strain hardening behavior in copper single crystalline micropillars
Under mechanical loading, the strain hardening behavior of crystalline face-centered cubic
(FCC) metals is of critical importance in determining fracture behavior and overall …
(FCC) metals is of critical importance in determining fracture behavior and overall …
Expected and unexpected plastic behavior at the micron scale: An in situ μLaue tensile study
The study of mechanical properties in micron-and submicron-sized metal crystals raises
fundamental questions about the influence of size on different aspects of plasticity. In situ …
fundamental questions about the influence of size on different aspects of plasticity. In situ …
Dislocation storage in single slip-oriented Cu micro-tensile samples: new insights via X-ray microdiffraction
Synchrotron X-ray microdiffraction was used to characterize the deformation structure of
single crystalline Cu micro-tensile specimens which were oriented for single slip. The 3-µm …
single crystalline Cu micro-tensile specimens which were oriented for single slip. The 3-µm …
Quantitative evidence of crossover toward partial dislocation mediated plasticity in copper single crystalline nanowires
In situ tensile tests of Cu single crystalline nanowires in a high-resolution transmission
electron microscope reveal a novel effect of sample dimensions on plasticity mechanisms …
electron microscope reveal a novel effect of sample dimensions on plasticity mechanisms …
Uniaxial compression of fcc Au nanopillars on an MgO substrate: The effects of prestraining and annealing
The size-dependent strength of face-centered cubic (fcc) metals, as revealed by uniaxial
compression of nanopillars, suggests that plasticity is dislocation source-controlled, with …
compression of nanopillars, suggests that plasticity is dislocation source-controlled, with …
Higher compressive strengths and the Bauschinger effect in conformally passivated copper nanopillars
Our current understanding of size-dependent strength in nano-and microscale crystals is
centered around the idea that the overall strength is determined by the stress required to …
centered around the idea that the overall strength is determined by the stress required to …
Influence of homogeneous interfaces on the strength of 500 nm diameter Cu nanopillars
Interfaces play an important role in crystalline plasticity as they affect strength and often
serve as obstacles to dislocation motion. Here we investigate effects of grain and nanotwin …
serve as obstacles to dislocation motion. Here we investigate effects of grain and nanotwin …