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To the new theory of crystal strength
Author(s) -
Vlasov A. D.
Publication year - 1994
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170290422
Subject(s) - materials science , crystal (programming language) , morse potential , thermal , stress (linguistics) , thermal expansion , lattice (music) , thermodynamics , dislocation , condensed matter physics , composite material , physics , quantum mechanics , linguistics , philosophy , computer science , acoustics , programming language
The main conceptions of the non‐dislocation theory of crystal strength have been proposed. These are the thermal stress, the temperature coefficient of thermal stress, and the initial microstrain ϵ in at which the thermal stresses start. These conceptions made possible an explanation of the crystal lattice mechanical instability that is well known from strength tests. A new simple form of Morse potential, a relation for the thermal stress, and a way to find the temperature coefficient in this relation have been advanced. Some measurements of very high and of common practice strengths of crystals were compared with theoretical suppositions and calculations.