TY - GEN
T1 - Performance of vibration power generators using single crystal and polycrystal magnetic cores of Fe-Ga alloys
AU - Fujieda, Shun
AU - Gorai, Naoki
AU - Kawamata, Toru
AU - Simura, Rayko
AU - Fukuda, Tsuguo
AU - Suzuki, Shigeru
N1 - Funding Information:
This research was supported by the TEPCO Memorial Foundation, the Core Research for Evolutional Science and Technology Program of the Japan Science and Technology Agency and the JSPS KAKENHI (Grant Nos. 17H03374 and 17H03422). The authors would like to thank Dr. Rie Umetsu at Tohoku University and Dr. Toshiyuki Ueno at Kanazawa University for experimental support.
Publisher Copyright:
© 2021 Trans Tech Publications Ltd, Switzerland.
PY - 2021
Y1 - 2021
N2 - The performance of a vibration power generator using a single crystal core of Fe-Ga alloy was compared with that of a generator using a Fe-Ga alloy polycrystal core with a similar Ga concentration. When the generator using the polycrystal core was forcibly vibrated by 1-G acceleration, the vibration frequency dependence of the open-circuit voltage showed a peak with a maximum value of about 0.14 V at the first resonance frequency due to the inverse magnetostrictive effect. On the other hand, the generator using a single crystal core with a <100> direction parallel to the external stress direction exhibited a maximum value of about 0.26 V, about two-times larger than that of the device using the polycrystal core. Consequently, a vibration energy generator using a single crystal core of Fe-Ga alloy has advantages in performance over a generator using a polycrystal core.
AB - The performance of a vibration power generator using a single crystal core of Fe-Ga alloy was compared with that of a generator using a Fe-Ga alloy polycrystal core with a similar Ga concentration. When the generator using the polycrystal core was forcibly vibrated by 1-G acceleration, the vibration frequency dependence of the open-circuit voltage showed a peak with a maximum value of about 0.14 V at the first resonance frequency due to the inverse magnetostrictive effect. On the other hand, the generator using a single crystal core with a <100> direction parallel to the external stress direction exhibited a maximum value of about 0.26 V, about two-times larger than that of the device using the polycrystal core. Consequently, a vibration energy generator using a single crystal core of Fe-Ga alloy has advantages in performance over a generator using a polycrystal core.
KW - Energy harvesting
KW - Inverse magnetostrictive effect
KW - Magnetostriction
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U2 - 10.4028/www.scientific.net/MSF.1016.453
DO - 10.4028/www.scientific.net/MSF.1016.453
M3 - Conference contribution
AN - SCOPUS:85100878210
SN - 9783035736304
T3 - Materials Science Forum
SP - 453
EP - 457
BT - THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications
A2 - Ionescu, Mihail
A2 - Sommitsch, Christof
A2 - Poletti, Cecilia
A2 - Kozeschnik, Ernst
A2 - Chandra, Tara
PB - Trans Tech Publications Ltd
T2 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications, THERMEC 2021
Y2 - 10 May 2021 through 14 May 2021
ER -