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Thin Films of AuCuAl Shape Memory Alloy for Use in Plasmonic Nano-actuators

Published online by Cambridge University Press:  04 February 2011

Vijay Bhatia ,
Gordon Thorogood ,
Annette Dowd  and
Michael B. Cortie
Vijay Bhatia
Affiliation:
Institute for Nanoscale Technology, University of Technology Sydney, PO Box 123, Broadway NSW 2007, Australia
Gordon Thorogood
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organisation, PMB 1, Menai NSW, 2234, Australia
Annette Dowd
Affiliation:
Institute for Nanoscale Technology, University of Technology Sydney, PO Box 123, Broadway NSW 2007, Australia
Michael B. Cortie
Affiliation:
Institute for Nanoscale Technology, University of Technology Sydney, PO Box 123, Broadway NSW 2007, Australia
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Abstract

We describe the fabrication and structure of nanoscale thin films of β phase shape memory alloys with the nominal atomic stoichiometry Au7Cu5Al4 (corresponding to 5.8 wt% Al). These alloys possess properties that suggest they could be used in nanoscale actuators. The films described here are between 20 and 50 nm thick which is below the thickness at which some other shape memory alloys cease to transform. However, microstructural and X-ray studies confirm that the coatings still exhibit the displacive transformations that are a prerequisite for the shape memory effect.

Keywords

Aumemorynanoscale

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1295: Symposium N – Intermetallic-Based Alloys for Structural and Functional Applications , 2011 , mrsf10-1295-n01-08
Copyright
Copyright © Materials Research Society 2011

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References

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