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Elastic Properties of Grain Boundaries in Copper

Published online by Cambridge University Press:  22 February 2011

James B. Adams ,
Wilhelm G. Wolfer  and
Stephen M. Foiles
James B. Adams
Affiliation:
Theoretical Division, Sandia National Laboratories, Livermore, CA 94550
Wilhelm G. Wolfer
Affiliation:
Theoretical Division, Sandia National Laboratories, Livermore, CA 94550
Stephen M. Foiles
Affiliation:
Theoretical Division, Sandia National Laboratories, Livermore, CA 94550
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Abstract

The elastic constants of a Σ5 (100) twist grain boundary are calculated on a monolayer-by-monolayer basis, and the elastic behavior is shown to differ by up to an order of magnitude from bulk-like behavior. This unusual elastic behavior is found to be similar to that of uniaxiallystrained crystals, since the grain boundaries themselves are regions which are strained (expanded) in one direction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 153: Symposium J – Interfaces Between Polymers, Metals, and Ceramics , 1989 , 369
Copyright
Copyright © Materials Research Society 1989

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