Elastocaloric Effect Associated with the Martensitic Transition in Shape-Memory Alloys
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Open Access
- 27 March 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 100 (12), 125901
- https://doi.org/10.1103/physrevlett.100.125901
Abstract
The elastocaloric effect in the vicinity of the martensitic transition of a Cu-Zn-Al single crystal has been studied by inducing the transition by strain or stress measurements. While transition trajectories show significant differences, the entropy change associated with the whole transformation () is coincident in both kinds of experiments since entropy production is small compared to . The values agree with estimations based on the Clausius-Clapeyron equation. The possibility of using these materials for mechanical refrigeration is also discussed.
Keywords
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