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Temperature Dependence of the Elastic Behavior of Structurally Disordered Metallic Superlattices

Published online by Cambridge University Press:  15 February 2011

J. A. Jaszczak  and
D. Wolf
J. A. Jaszczak
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
D. Wolf
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
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Abstract

The structure and elastic properties of superlattices composed of high-angle twist grain boundaries on (100) planes of copper are investigated as a function of both the modulation wavelength and temperature via molecular dynamics simulations. Comparison is made with zero-temperature results, where a stiffening of the Young's modulus normal to the interfaces and a softening of the modulus for shear parallel to the interfaces has previously been observed. The differences between the effects of homogeneous (temperature-induced) and inhomogeneous (interface-induced) structural disorder on the elastic properties is explored.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 229: Symposium Q – Structure/Property Relationships for Metal/Metal Interfaces , 1991 , 85
Copyright
Copyright © Materials Research Society 1991

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