Zobrazeno 1 - 10
of 278
pro vyhledávání: '"El–Azab, Anter"'
In this work, the effect of electron-phonon (e-ph) coupling on both electron and phonon transport of metals is investigated via first principles calculations. A Monte-Carlo (MC) approach for solving the coupled electron-phonon Boltzmann transport equ
Externí odkaz:
http://arxiv.org/abs/2402.08150
The availability of tera-byte scale experiment data calls for AI driven approaches which automatically discover scientific models from data. Nonetheless, significant challenges present in AI-driven scientific discovery: (i) The annotation of large sc
Externí odkaz:
http://arxiv.org/abs/2311.12801
Voids develop in crystalline materials under energetic particle irradiation, as in nuclear reactors. Understanding the underlying mechanisms of void nucleation and growth is of utmost importance as it leads to dimensional instability of the metallic
Externí odkaz:
http://arxiv.org/abs/2307.15626
Progress toward a first-principles theory of plasticity and work-hardening is currently impeded by an insufficient picture of dislocation kinetics (the dynamic effect of driving forces in a given dislocation theory). This is because present methods i
Externí odkaz:
http://arxiv.org/abs/2305.10375
An atomistically informed mean field cluster dynamics model has been presented to investigate the nucleation and growth of defect loops in irradiated {\alpha}-U. TEM analysis of neutron irradiated {\alpha}-U shows the evolution of SIA and vacancy loo
Externí odkaz:
http://arxiv.org/abs/2304.08387
In this paper, we investigate plasticity in irradiated FeCrAl nanopillars using discrete dislocation dynamics simulations (DDD), with comparisons to transmission electron microscopic (TEM) in situ tensile tests of ion and neutron irradiated commercia
Externí odkaz:
http://arxiv.org/abs/2301.01812
Cross-slip is a thermally activated process by which screw dislocation changes its glide plane to another slip plane sharing the same Burgers vector. The rate at which this process happens is determined by a Boltzmann type expression that is a functi
Externí odkaz:
http://arxiv.org/abs/2209.13700
Autor:
Hamed, Ahmed, El-Azab, Anter
The impact of dispersion relations, anisotropy, and Brillouin zone structure on intrinsic phonon scattering rates has been assessed within the harmonic approximation-perturbation theory approach for lattice dynamics. Anisotropic nonlinear elastic con
Externí odkaz:
http://arxiv.org/abs/2206.06634
A cluster dynamics (CD) model has been developed to investigate the nucleation and growth of point defect clusters, i.e., interstitial prismatic loops and nanoscale and sub-nanoscale voids, in ThO2 during irradiation by energetic particles. The model
Externí odkaz:
http://arxiv.org/abs/2206.06500
Autor:
Hurley, David H., El-Azab, Anter, Bryan, Matthew S., Cooper, Michael W. D., Dennett, Cody A., Gofryk, Krzysztof, He, Lingfeng, Khafizov, Marat, Lander, Gerard H., Manley, Michael E., Mann, J. Matthew, Marianetti, Chris A., Rickert, Karl, Selim, Farida A., Tonks, Michael R., Wharry, Janelle P.
Publikováno v:
Chem. Rev. 122, 3, 3711 (2022)
To efficiently capture the energy of the nuclear bond, advanced nuclear reactor concepts seek solid fuels that must withstand unprecedented temperature and radiation extremes. In these advanced fuels, thermal energy transport under irradiation is dir
Externí odkaz:
http://arxiv.org/abs/2204.13236