Contribution of bending vibrations damping to internal friction caused by electron braking of screw dislocation interacting with point defects

Viktor V. Dezhin

doi:10.1117/12.3025076

20 February 2024 Contribution of bending vibrations damping to internal friction caused by electron braking of screw dislocation interacting with point defects

Viktor V. Dezhin

Author Affiliations +

Proceedings Volume 13065, Third International Conference on Optics, Computer Applications, and Materials Science (CMSD-III 2023); 130651I (2024) https://doi.org/10.1117/12.3025076
Event: Third International Conference on Optics, Computer Applications, and Materials Science (CMSD-III 2023), 2023, Dushanbe, Tajikistan

Abstract

In this work, contribution of small bending vibrations of infinite screw dislocation to internal friction is studied. Influence of the Peierls barrier and elastic interaction with point defects located along the screw dislocation line is considered. Expression is obtained for generalized susceptibility of the screw dislocation in dissipative crystal, taking into account the considered influences. Formulas are found for natural frequency of short-wave bending vibrations of the screw dislocation and contribution of bending vibrations to dislocation internal friction. Using specific crystal as example, computational experiment was carried out and graphs of frequency dependence of internal friction were constructed.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Viktor V. Dezhin "Contribution of bending vibrations damping to internal friction caused by electron braking of screw dislocation interacting with point defects", Proc. SPIE 13065, Third International Conference on Optics, Computer Applications, and Materials Science (CMSD-III 2023), 130651I (20 February 2024); https://doi.org/10.1117/12.3025076

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