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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.

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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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