Shape Memory Alloys and their Applications in Power Generation and Refrigeration
The shape memory effect is closely related to the reversible martensitic phase transformation, which is diffusionless and involves shear deformation. The recoverable transformation between the two phases with different crystalline symmetry results in reversible changes in physical properties such as electrical conductivity, magnetization, and elasticity. Accompanying the transformation is a change of entropy. Fascinating applications are developed based on these changes. In this paper, the history, fundamentals and technical challenges of both thermoelastic and ferromagnetic shape memory alloys are briefly reviewed; applications related to energy conversion such as power generation and refrigeration as well as recent developments will be discussed.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1178896
- Report Number(s):
- PNNL-SA-96654
- Resource Relation:
- Conference: Novel Functionality by Reversible Phase Transformation, April 1-5, 2013, San Francisco, California. MRS Proceedings, 1581:Paper No. mrss13-1581-ccc01-02
- Country of Publication:
- United States
- Language:
- English
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