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Elastic Properties and Structural Evolution of AgNi Superlattices

Published online by Cambridge University Press:  15 February 2011

B. Rodmacq ,
V. Pelosin  and
J. Hillairet
B. Rodmacq
Affiliation:
Laboratoire de Métallurgie Physique Service de Physique des Matériaux et Microstructures Département de Recherche Fondamentale de la Matièe Condensée Centre d'Etudes Nucléaires, 85X, 38041 Grenoble Cédex, France
V. Pelosin
Affiliation:
Laboratoire de Métallurgie Physique Service de Physique des Matériaux et Microstructures Département de Recherche Fondamentale de la Matièe Condensée Centre d'Etudes Nucléaires, 85X, 38041 Grenoble Cédex, France
J. Hillairet
Affiliation:
Laboratoire de Métallurgie Physique Service de Physique des Matériaux et Microstructures Département de Recherche Fondamentale de la Matièe Condensée Centre d'Etudes Nucléaires, 85X, 38041 Grenoble Cédex, France
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Abstract

Silver-nickel multilayers were prepared by sputtering at 100 K. X-ray diffraction, electrical resistivity and dimensional variation measurements were performed to structurally characterize these stratified materials, both in the as-prepared state and during the course of annealing cycles. Clearly, polycrystalline superlattices with marked (111) texture perpendicular to the strata are formed. We studied the elastic properties of these superlattices by performing uniaxial tension tests. No deviation from linear elasticity was observed, whatever the period. Young's modulus was found to be 130±15 GPa for all the periods studied. Thus no significant functional dependence of Young's modulus on the stacking periodicity exists in the AgNi superlattice, in the range of periods explored, 2.6 to 18 nm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 229: Symposium Q – Structure/Property Relationships for Metal/Metal Interfaces , 1991 , 97
Copyright
Copyright © Materials Research Society 1991

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