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The Dislocation Loop in an Anisotropic Medium and Its Interaction with an Interstitial Atom
Author(s) -
Meissner N.,
Savino E. J.,
Willis J. R.,
Bullough R.
Publication year - 1974
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220630113
Subject(s) - anisotropy , dislocation , loop (graph theory) , atom (system on chip) , condensed matter physics , distortion (music) , field (mathematics) , materials science , plane (geometry) , physics , geometry , optics , mathematics , amplifier , optoelectronics , cmos , combinatorics , computer science , pure mathematics , embedded system
Several explicit expressions for the distortion field of an elliptical dislocation loop in a general anisotropic medium are presented. These are used to evaluate the interaction energy between an interstitial dislocation loop in copper and a nearby interstitial atom. The interstitial atom is represented by either a simple spherical inclusion or by realistic Kanzaki forces for its dumb‐bell configuration. The effects of both the microscopic anisotropy of the point defect and of the elastic anisotropy of the body on the form and magnitude of the interaction energy is thus exposed.