Growth of Fe-Ga alloy single crystals by the czochralski method and their application to vibration power generator

Shun Fujieda; Shigeru Suzuki; Akio Minato; Tsuguo Fukuda; Toshiyuki Ueno

doi:10.1109/TMAG.2014.2331139

Growth of Fe-Ga alloy single crystals by the czochralski method and their application to vibration power generator

Shun Fujieda, Shigeru Suzuki, Akio Minato, Tsuguo Fukuda, Toshiyuki Ueno

Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

An Fe-Ga alloy single crystal of about 10 mm in diameter and about 60 mm in length was grown by the Czochralski (CZ) method. The as-grown ingot was approximately oriented in the (〈100〉) direction parallel to the pull-up direction. The gallium concentration of the as-grown ingot was close to that of the starting polycrystalline alloy. The magnetostriction of about -212 ppm was observed in the (〈100〉) direction by applying a magnetic field perpendicular to the measured direction. In addition, the superior performance of vibration power generation due to the large inverse magnetostrictive effect was demonstrated by a prototype device using the as-grown Fe-Ga alloy single crystal. It is concluded that Fe-Ga alloy single crystals grown by the CZ method are promising for application to vibration power generators.

Original language	English
Article number	6971570
Journal	IEEE Transactions on Magnetics
Volume	50
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2014.2331139
Publication status	Published - 2014 Nov 1

Keywords

Electron backscatter diffraction (EBSD)
Galfenol
energy harvesting
inverse magnetostrictive effect
magnetostriction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2014.2331139

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title = "Growth of Fe-Ga alloy single crystals by the czochralski method and their application to vibration power generator",

abstract = "An Fe-Ga alloy single crystal of about 10 mm in diameter and about 60 mm in length was grown by the Czochralski (CZ) method. The as-grown ingot was approximately oriented in the (〈100〉) direction parallel to the pull-up direction. The gallium concentration of the as-grown ingot was close to that of the starting polycrystalline alloy. The magnetostriction of about -212 ppm was observed in the (〈100〉) direction by applying a magnetic field perpendicular to the measured direction. In addition, the superior performance of vibration power generation due to the large inverse magnetostrictive effect was demonstrated by a prototype device using the as-grown Fe-Ga alloy single crystal. It is concluded that Fe-Ga alloy single crystals grown by the CZ method are promising for application to vibration power generators.",

keywords = "Electron backscatter diffraction (EBSD), Galfenol, energy harvesting, inverse magnetostrictive effect, magnetostriction",

author = "Shun Fujieda and Shigeru Suzuki and Akio Minato and Tsuguo Fukuda and Toshiyuki Ueno",

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AU - Fujieda, Shun

AU - Suzuki, Shigeru

AU - Minato, Akio

AU - Fukuda, Tsuguo

AU - Ueno, Toshiyuki

PY - 2014/11/1

Y1 - 2014/11/1

N2 - An Fe-Ga alloy single crystal of about 10 mm in diameter and about 60 mm in length was grown by the Czochralski (CZ) method. The as-grown ingot was approximately oriented in the (〈100〉) direction parallel to the pull-up direction. The gallium concentration of the as-grown ingot was close to that of the starting polycrystalline alloy. The magnetostriction of about -212 ppm was observed in the (〈100〉) direction by applying a magnetic field perpendicular to the measured direction. In addition, the superior performance of vibration power generation due to the large inverse magnetostrictive effect was demonstrated by a prototype device using the as-grown Fe-Ga alloy single crystal. It is concluded that Fe-Ga alloy single crystals grown by the CZ method are promising for application to vibration power generators.

AB - An Fe-Ga alloy single crystal of about 10 mm in diameter and about 60 mm in length was grown by the Czochralski (CZ) method. The as-grown ingot was approximately oriented in the (〈100〉) direction parallel to the pull-up direction. The gallium concentration of the as-grown ingot was close to that of the starting polycrystalline alloy. The magnetostriction of about -212 ppm was observed in the (〈100〉) direction by applying a magnetic field perpendicular to the measured direction. In addition, the superior performance of vibration power generation due to the large inverse magnetostrictive effect was demonstrated by a prototype device using the as-grown Fe-Ga alloy single crystal. It is concluded that Fe-Ga alloy single crystals grown by the CZ method are promising for application to vibration power generators.

KW - Electron backscatter diffraction (EBSD)

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KW - energy harvesting

KW - inverse magnetostrictive effect

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Growth of Fe-Ga alloy single crystals by the czochralski method and their application to vibration power generator

Abstract

Keywords

ASJC Scopus subject areas

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