TY - JOUR
T1 - Characterization and performance of large-sized Fe–Ga alloy single crystals grown using the Czochralski method
AU - Suzuki, Shigeru
AU - Taguchi, Osamu
AU - Kawamata, Toru
AU - Sugiyama, Kazumasa
AU - Ono, Jin
AU - Kumagai, Tsuyoshi
AU - Fukuda, Tsuguo
N1 - Funding Information:
We acknowledge the support from the Core Research for Evolutional Science and Technology Program of the Japan Science and Technology Agency, Grant-in-Aid for Scientific Research by the Japan Society for the Promotion of Science (17H03422), Nippon Steel Corporation, the Murata Science Foundation, Yamanashi Industrial Technology Center, and Global Institute for Materials Research Tohoku University. We also express our sincere thanks to Prof. T. Ueno, Dr. T. Minamitani, and Prof. R. Simura for their help with experiments and discussions about vibration energy harvesting.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/9/15
Y1 - 2021/9/15
N2 - In order to apply magnetostrictive materials in vibration energy harvesting devices, large-sized ingots of Fe–Ga alloy single crystals exhibiting large magnetostriction were successfully grown using the Czochralski method. The performance of power generation using the 〈1 0 0〉-oriented crystal has been evaluated using simply designed devices. Specifically, influences of magnetic fields produced by inverse magnetostriction of the crystal and permanent magnets on power generation have been studied. The results indicated that power generation using the Fe-Ga alloy single crystal result from the inverse magnetostriction and the magnetic fluxes generated by electromagnetic inductions, which are caused by the cyclic relative motion between a coil and permanent magnets using the simple device frame structures. It was shown that the alloy single crystal acts as a magnetic core, and that the alternating current produced via vibration energy harvesting can be converted to direct current for charging batteries.
AB - In order to apply magnetostrictive materials in vibration energy harvesting devices, large-sized ingots of Fe–Ga alloy single crystals exhibiting large magnetostriction were successfully grown using the Czochralski method. The performance of power generation using the 〈1 0 0〉-oriented crystal has been evaluated using simply designed devices. Specifically, influences of magnetic fields produced by inverse magnetostriction of the crystal and permanent magnets on power generation have been studied. The results indicated that power generation using the Fe-Ga alloy single crystal result from the inverse magnetostriction and the magnetic fluxes generated by electromagnetic inductions, which are caused by the cyclic relative motion between a coil and permanent magnets using the simple device frame structures. It was shown that the alloy single crystal acts as a magnetic core, and that the alternating current produced via vibration energy harvesting can be converted to direct current for charging batteries.
KW - A1. Magnetic fields
KW - A2. Czochralshi method
KW - B1. Alloys
KW - B1. Metals
KW - B2. Magnetic materials
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U2 - 10.1016/j.jcrysgro.2021.126227
DO - 10.1016/j.jcrysgro.2021.126227
M3 - Article
AN - SCOPUS:85108438410
VL - 570
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
M1 - 126227
ER -