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Thermo-Mechanical Ni50Ti50/Si Composite Thin Film Switch

Published online by Cambridge University Press:  16 February 2011

T. Kim
Affiliation:
Department of Materials and Nuclear Engineering, University of Maryland, College Park, MD 20742-2115, USA
Quanmin Su
Affiliation:
Department of Materials and Nuclear Engineering, University of Maryland, College Park, MD 20742-2115, USA
Manfred Wuttig
Affiliation:
Department of Materials and Nuclear Engineering, University of Maryland, College Park, MD 20742-2115, USA
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Abstract

The mechanical properties of Ni50Ti50 deposited on Si and 3C-SiC substrates were studied focussing on the interaction of the film and substrate. This interaction determines the transformation characteristics through interface accommodation and mechanical constraints exerted by the substrate stiffness. Substrate stiffness, controlled by the film/substrate thickness ratio, was found to have a substantial influence on the output energy of the film/substrate composite. A switch type composite based on this knowledge was fabricated and tested.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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