Open AccessSTUDY OF DYNAMIC DRAG OF DISLOCATIONS IN КСl CRYSTALS WITH IMPURITIES AND DIFFERENT DISLOCATION STRUCTURE
Author(s) -
O. M. Petchenko,
Г.О. Петченко,
S. М. Boiko
Publication year - 2021
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2021-132-051
Subject(s) - impurity , dislocation , drag , materials science , condensed matter physics , crystal (programming language) , thermodynamics , physics , composite material , quantum mechanics , computer science , programming language
The frequency spectra of the dislocation decrement of attenuation ∆ d(f) on KCl + Ba (10-2 wt.%) impurity single crystals with residual deformations of 0.25; 0.45; 0.75% at T = 300 K were investigated by the pulse method in the frequency range 22.5… 232.5 MHz. In the framework of the Granato-Lucke theory, the coefficients of dynamic drag of dislocations B for crystals with different are calculated. It is shown that neither the presence of impurities nor the change of the dislocation structure affects the level of dynamic drag of dislocations.