Propagation of 2-crowdion in W bcc lattice at finite temperature

Igor A. Shepelev; Ivan D. Kolesnikov; Elena A. Korznikova

doi:10.1117/12.2626328

29 April 2022 Propagation of 2-crowdion in W bcc lattice at finite temperature

Igor A. Shepelev, Ivan D. Kolesnikov, Elena A. Korznikova

Proceedings Volume 12194, Computational Biophysics and Nanobiophotonics; 121940F (2022) https://doi.org/10.1117/12.2626328
Event: XXV Annual Conference Saratov Fall Meeting 2021; and IX Symposium on Optics and Biophotonics, 2021, Saratov, Russian Federation

Abstract

Crowdion presents an interstitial mobile defect propagating in close-packed crystallographic directions and plays an important role in energy and mass transfer processes occurring in bcc tungsten lattice in non-equilibrium conditions. In the present day, tungsten remains one of the most promising plasma-oriented material, which saves its protective features even under high-intensive irradiation influence in nuclear reactors. Crowdions can be one of most possible and effective nonlinear channels of energy dissipation obtaining under irradiation. The dynamics of the crowdion in the lattice with the zero or very low temperature has been already deeply studied. At the same time, influence of thermal oscillations of atoms on the crowdion dynamics has not been studied in detail, despite the processes of irradiation always occur under finite nonzero temperature. In the present work, we try to reveal changing the crowdion features under different finite temperature of the tungsten lattice.

Citation Download Citation

Igor A. Shepelev, Ivan D. Kolesnikov, and Elena A. Korznikova "Propagation of 2-crowdion in W bcc lattice at finite temperature", Proc. SPIE 12194, Computational Biophysics and Nanobiophotonics, 121940F (29 April 2022); https://doi.org/10.1117/12.2626328

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