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Structure and Elastic Properties of Ni/Cu and Ni/Au Multilayers

Published online by Cambridge University Press:  01 January 1992

Ademola Taiwo ,
Hong Yan  and
Gretchen Kalonji
Ademola Taiwo
Affiliation:
Dept. of Materials Science & Engineering, University of Washington, Seattle, WA 98195 Department of Nuclear Engineering, MIT, Cambridge, MA 02139
Hong Yan
Affiliation:
Dept. of Materials Science & Engineering, University of Washington, Seattle, WA 98195
Gretchen Kalonji
Affiliation:
Dept. of Materials Science & Engineering, University of Washington, Seattle, WA 98195
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Abstract

The structure and elastic properties of Ni/Cu and Ni/Au multilayer systems are investigated as a function of the number of Ni monolayers built into the systems. We employed lattice statics simulations with the interatomic potentials described by the embedded-atom method. For the Ni/Cu systems, coherent interfaces and FCC structure are maintained, and no elastic anomaly is found. For the Ni/Au systems, when the Ni layers are thick enough, they undergo a strain-induced phase transformation from FCC to HCP structure. An enhancement of Young’s modulus of these systems is found to be associated with this structural change.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 291: Symposium O – Materials Theory and Modeling , 1992 , 479
Copyright
Copyright © Materials Research Society 1993

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References

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