Open AccessО возможном механизме внешнего инфразвукового механического стимулирования процесса формирования нанокристаллов в аморфной металлической пленке
Author(s) -
Е.Е. Слядников,
И.Ю. Турчановский
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.11.51526.35-21
Subject(s) - nanoclusters , materials science , amorphous solid , excited state , nanocrystal , relaxation (psychology) , amorphous metal , quantum tunnelling , chemical physics , kinetic energy , deformation (meteorology) , quantum , condensed matter physics , nanotechnology , composite material , crystallography , atomic physics , chemistry , physics , psychology , social psychology , optoelectronics , quantum mechanics
A kinetic model, a physical reason and a condition for stimulated by externalinfrasonic mechanical vibrations of the formation of nanocrystals in an amorphous metal film. The nanostructural elements of the amorphous medium are responsible for these processes: locallyordered nanoclusters and nanoregions containing free volume, which contain two-level systems. When glass is deformed, two-level systems are excited, due to which theymake a significant contribution to inelastic deformation, structural relaxation, formation of nanoclustersand nanocrystals. The physical mechanism of nanocrystallization of metallic glass during mechanicalexposure includes, in addition to the mechanism of local thermal fluctuations, also athermalmechanism of quantum tunneling of atoms or atomic groups stimulated by inelastic deformation.