Stand‐off positions and nonuniform distributions of misfit dislocations in heterophase systems

Document Type

Article

Publication Date

10-16-1995

Department

Department of Materials Science and Engineering

Abstract

Peculiarities in the spatial distribution of misfit dislocations near the interfaces in heterophase materials are discussed. The peculiarities include the shift of misfit dislocations to the stand‐off position at the interface, formation of nonuniform misfit dislocation distributions along the interface, and temporal and spatial oscillations in defect densities in the material near the interface. Energetic, dynamic, and kinetic reasons leading to the above‐mentioned effects are considered. The developed approach allows to find stand‐off positions of misfit dislocations which are in good agreement with experiments and to determine critical misfit strain and thickness of the film corresponding to the transition between uniform and nonuniform dislocation distributions.

Publisher's Statement

Copyright © 1995 WILEY‐VCH Verlag GmbH & Co. KGaA. Publisher’s version of record: https://doi.org/10.1002/pssa.2211510203

Publication Title

physica status solidi (a)

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