MECHANISM OF INITIATION OF ACOUSTIC EMISSION 
IN CRYSTALLIZATION AND MELTING OF A SUBSTANCE. I.
M. K. Zhekamukhov and Kh. B. Shokarov

UDC 534.5:532.781

A theoretical model of the acoustic effect of crystallization 
is suggested based on the representation of a stepwise character of 
formation or disappearance of macrolayers and macroregions on a growing 
(or melting) surface. According to this model, the picture of oscillations 
reproduces in basic features the form of the signals observed in experiments. 
The oscillation frequency of the liquid is determined by the frequency 
of generation of jumps at the crystallization front, while the comparatively 
large values of peak pressures in acoustic waves are a consequence 
of the resonance phenomena.

JEPTER7492020008
JEPTER749208