TY - JOUR
T1 - Investigation of power generation mechanism and anisotropy of Fe-Ga magnetostrictive alloy single crystal based on magnetic domain observations
AU - Takahashi, Takumi
AU - Simura, Rayko
AU - Fujieda, Shun
AU - Kawamata, Toru
AU - Suzuki, Shigeru
AU - Fukuda, Tsuguo
N1 - Publisher Copyright:
© 2019 The Japan Society of Applied Physics.
PY - 2019
Y1 - 2019
N2 - Recent developments in the field of vibration-based power generators have highlighted the advantages of using Fe-Ga alloys; these are excellent-magnetostrictive materials having good mechanical properties, which makes them well suited for use as magnetostrictive elements. A rectangular Fe-Ga element oriented along the 100 direction in a U-shaped unimorph device produces a higher power generation efficiency than samples with other orientations such as 110 and 111. The crystal growth direction of the ingots and plane orientation of the elements have a minimal effect on the power-generation efficiency. The observations of the magnetic domain and elastic properties suggest that the anisotropy in power generation is attributable to the anisotropic magnetic and elastic properties of the Fe-Ga alloy. Thus, a high-performance, vibration-based power generator using the Fe-Ga alloy should be fabricated using elements with a 100 orientation, cut from a single-crystal Fe-Ga ingot.
AB - Recent developments in the field of vibration-based power generators have highlighted the advantages of using Fe-Ga alloys; these are excellent-magnetostrictive materials having good mechanical properties, which makes them well suited for use as magnetostrictive elements. A rectangular Fe-Ga element oriented along the 100 direction in a U-shaped unimorph device produces a higher power generation efficiency than samples with other orientations such as 110 and 111. The crystal growth direction of the ingots and plane orientation of the elements have a minimal effect on the power-generation efficiency. The observations of the magnetic domain and elastic properties suggest that the anisotropy in power generation is attributable to the anisotropic magnetic and elastic properties of the Fe-Ga alloy. Thus, a high-performance, vibration-based power generator using the Fe-Ga alloy should be fabricated using elements with a 100 orientation, cut from a single-crystal Fe-Ga ingot.
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U2 - 10.7567/1347-4065/ab3e60
DO - 10.7567/1347-4065/ab3e60
M3 - Article
AN - SCOPUS:85073263889
VL - 58
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 10
M1 - 106508
ER -