Open AccessAPPLICATION OF ACOUSTIC PULSE ECHO-METHOD FOR THE INVESTIGATION OF DYNAMIC AND STRUCTURAL DYSLOCATION CHARACTERISTICS OF CRYSTALS
Author(s) -
O. M. Petchenko,
Г.О. Петченко,
A.V. Bezugly,
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 - 10.46813/2021-132-142
Subject(s) - dislocation , materials science , amplitude , pulse (music) , relaxation (psychology) , range (aeronautics) , acoustics , action (physics) , echo (communications protocol) , condensed matter physics , mechanics , composite material , optics , physics , computer science , psychology , social psychology , computer network , quantum mechanics , detector
The multifunctional pulse equipment allowіng to use the method of amplitude-independent internal friction in the frequency range 7.5 to 232.5 MHz is described. Equipment gjves the possibility to investigate the peculiarities of the process of phonon-dislocation interaction in crystals, to carry out thermoactivation analysis of the process of dislocation of the dislocations about the stoppers under the action of temperature and elastic loading, to study processes of dislocation and mechanical relaxation in loaded samples in the quasi-elastic and plastic strain range.