Mechanical energy conversion to electricity through periodically stress-induced martensitic transformation in Co-Ni-Ga

We anticipate and demonstrate experimentally the mechanical-to-electrical energy conversion through the variation of magnetization resulting from a periodical stress-induced martensitic transformation in the single crystalline Co-Ni-Ga ferromagnetic shape memory alloy. Dynamic loading in a stress-in...

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Bibliographic Details
Published in:Scripta materialia 2023-11, Vol.236, p.115667, Article 115667
Main Authors: Lindquist, Paul, Chernenko, Volodymyr, Cesari, Eduard, Müllner, Peter
Format: Article
Language:English
Subjects:
Co-Ni-Ga ferromagnetic shape memory alloy
Cyclic Loading
Magneto-mechanical Work
Stress-induced martensitic transformation
Vibration energy harvesting
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Summary:We anticipate and demonstrate experimentally the mechanical-to-electrical energy conversion through the variation of magnetization resulting from a periodical stress-induced martensitic transformation in the single crystalline Co-Ni-Ga ferromagnetic shape memory alloy. Dynamic loading in a stress-induced austenite-martensite two-phase state was performed with the peak-to-peak strain amplitude from 0.002 to 0.024 in a frequency range of 25 - 150 Hz. A reproducible superelastic behavior occurred at all frequencies. Alongside this remarkable result, we found that the electrical power output depends quadratically on the peak-to-peak strain. This study suggests a new route for the development of broad-band vibration energy harvesting devices. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2023.115667