Results 21 to 30 of about 32,379 (293)
Nano-sized prismatic vacancy dislocation loops and vacancy clusters in tungsten
Nuclear Materials and Energy, 2018 The vacancies produced in high energy collision cascades of irradiated tungsten can form vacancy clusters or prismatic vacancy dislocation loops. Moreover, vacancy loops can easily transform into planar vacancy clusters.
Jan Fikar +3 more
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Dislocation structure of tungsten irradiated by light ions
Nuclear Fusion, 2022 Single crystalline tungsten samples were irradiated by He, D, and H at room temperature, with a calculated damage level in the peak maximum up to 0.04 dpa and with He up to 0.5 dpa.
B. Wieluńska-Kuś +5 more
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Formation and annealing of dislocation loops induced by nitrogen implantation of ZnO [PDF]
, 2011 Although zinc oxide is a promising material for the fabrication of short wavelength optoelectronic devices, p-type doping is a step that remains challenging for the realization of diodes.
Gallagher M. +8 more
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BIAS OF BASAL DISLOCATION LOOP IN ZIRCONIUM
Problems of Atomic Science and Technology, 2021 An analytical expression for the elastic interaction energy of radiation point defects of the dipole type with the basal dislocation loop of the hcp metal is obtained using the Green's function method for hexagonal crystals in the Krener approach.
Babich, A.V., Ostapchuk, P.N.
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Interaction energy of interface dislocation loops in piezoelectric bi-crystals
Theoretical and Applied Mechanics Letters, 2017 Interface dislocations may dramatically change the electric properties, such as polarization, of the piezoelectric crystals. In this paper, we study the linear interactions of two interface dislocation loops with arbitrary shape in generally anisotropic ...
Jianghong Yuan +3 more
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Interrelation between Dislocation Loops and an Edge Dislocation
MATERIALS TRANSACTIONS, 2005 Since it has recently become an important subject to study the interrelation between a dislocation loop and a straight edge dislocation because of dynamic behaviors of small dislocation loops under irradiation condition, the simulation studies were made in model Fe lattice.
Eiichi Kuramoto +2 more
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Strain Localisation and Fracture of Nuclear Reactor Core Materials
Journal of Nuclear Engineering, 2023 The production of prismatic dislocation loops in nuclear reactor core materials results in hardening because the loops impede dislocation motion. Yielding often occurs by a localised clearing of the loops through interactions with gliding dislocations ...
Malcolm Griffiths
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Unraveling deformation mechanisms around FCC and BCC nanocontacts through slip trace and pileup topography analyses [PDF]
, 2017 Nanocontact loadings offer the potential to investigate crystal plasticity from surface slip trace emissions and distinct pileup patterns where individual atomic terraces arrange into hillocks and symmetric rosettes.
Alcalá Cabrelles, Jorge +3 more
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Annealing of dislocation loops in dislocation dynamics simulations
IOP Conference Series: Materials Science and Engineering, 2009 We report of 3-dimensional discrete dislocation dynamics (DDD) simulations of dislocation loops coarsening by vacancy bulk difiusion. The calculation is based upon a model which couples the difiusion theory of vacancies to the DDD in order to obtain the climb rate of the dislocation segments.
Dan Mordehai +3 more
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In-situ TEM Study of Dislocation Loop Evolution in Tungsten under Dual-ion Beam Irradiation
Yuanzineng kexue jishuFusion reactors are regarded as the ultimate source of energy for addressing future power problems. However, prior to the building of fusion power plants, a number of scientific obstacles including significant degradation of plasma-facing material (PFM).
MA Pengfei1, LIU Yan2, CAO Liuxuan2, ZHANG Yapei1, LI Xiurui1, TIAN Wenxi1, QIU Suizheng1, SU Guanghui1
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