Results 21 to 30 of about 191,305 (291)
Microstructural modifications in tungsten induced by high flux plasma exposure : TEM examination [PDF]
, 2016 We have performed microstructural characterization using transmission electron microscopy (TEM) techniques to reveal nanometric features in the sub-surface region of tungsten samples exposed to high flux, low energy deuterium plasma.
Bakaeva, Anastasiia +5 more
core +1 more source
Determination of dislocation densities in InN
physica status solidi c, 2012 AbstractThe magneto‐transport measurements, carried out at magnetic fields up to 11 T and in the temperature range between 1.8 K and 300 K, are used to investigate the scattering mechanisms in GaN/InN/AlN double heterojunctions. Theoretical modeling is based on a variational approach to solving Boltzmann transport equation. It is found that dislocation
Ardali, Sukru +6 more
openaire +3 more sources
Phase-field simulation of nano-α′ precipitates under irradiation and dislocations
Journal of Materials Research and Technology, 2023 This is the first investigation on the micromorphology and kinetics evolution of Cr-rich α′ precipitates under Cr composition, irradiation and dislocation with the three-dimensional phase-field simulation.
Wenkui Yang +4 more
doaj +1 more source
Crystals, 2018 This paper reports the relationship between oxygen concentration and dislocation multiplication in silicon crystals during directional solidification using numerical analysis. Based on the Alexander–Haasen–Sumino model, this analysis involved
Tomoro Ide +5 more
doaj +1 more source
Dislocation density-based plasticity model from massive discrete dislocation dynamics database
Journal of the Mechanics and Physics of Solids, 2020 We present a dislocation density-based strain hardening model for single crystal copper through a systematic coarse-graining analysis of more than 200 discrete dislocation dynamics (DDD) simulations of plastic deformation under uniaxial tension. The proposed constitutive model has two components: a generalized Taylor relation connecting resolved shear ...
Akhondzadeh, Sh. +3 more
openaire +3 more sources
Materials Research Letters, 2019 Effect of solutes, crystal orientation, sample’s size, and dislocation density on the nano/microscale deformation of solute-strengthening Al alloys has been investigated via pillar compression tests.
Shaohua Yan, Haiyang Zhou, Qing H. Qin
doaj +1 more source
Nuclear Analysis, 2022 Fe13.5Cr4.7Al alloy was irradiated in-situ with 400 keV Fe+ in TEM at RT and 748 K. The evolution of dislocation loops under the influence of temperatures, irradiation dose, dislocation lines and precipitates were characterized in detail.
Kefei Pei +6 more
doaj +1 more source
Influence of dislocation density of nickel on dissolution kinetics in acidic chloride electrolyte
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014 An influence of dislocation density of nickel’s anode on the density of anode current and the homogeneity of anode's dissolution along the surface in the acidic chloride electrolyte was studied. To create the dislocation density of about 109 cm
Alexey D Vasilyev
doaj +1 more source
Edge dislocations in crystal structures considered as traveling waves of discrete models [PDF]
, 2003 The static stress needed to depin a 2D edge dislocation, the lower dynamic stress needed to keep it moving, its velocity and displacement vector profile are calculated from first principles.
A. Carpio +9 more
core +3 more sources
High dislocation density of tin induced by electric current
AIP Advances, 2015 A dislocation density of as high as 1017 /m2 in a tin strip, as revealed by high resolution transmission electron microscope, was induced by current stressing at 6.5 x 103 A/ cm2. The dislocations exist in terms of dislocation line, dislocation loop, and
Yi-Han Liao +3 more
doaj +1 more source