Growth of Fe-Ga Alloy Single Crystals by the Czochralski Method and Their Application to Vibration Power Generator
Growth of Fe-Ga Alloy Single Crystals by the Czochralski Method and Their Application to Vibration Power Generator
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DOI：
10.1109/tmag.2014.2331139
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发表时间：
2014-12
影响因子：
2.1
通讯作者：
S. Fujieda;Shigeru Suzuki;A. Minato;T. Fukuda;T. Ueno
中科院分区：
文献类型：
--
作者：
S. Fujieda;Shigeru Suzuki;A. Minato;T. Fukuda;T. Ueno
通过直拉（CZ）法生长直径约10 mm、长度约60 mm的Fe-Ga合金单晶。所生长的晶锭大致在平行于上拉方向的100 μ m方向上取向。所生长的锭的镓浓度接近于起始多晶合金的镓浓度。通过施加垂直于测量方向的磁场，在100 μ m方向上观察到约-212 ppm的磁致伸缩。此外，振动发电的上级性能，由于大的逆磁致伸缩效应被证明由一个原型装置，使用生长的Fe-Ga合金单晶。结果表明，用提拉法生长的Fe-Ga合金单晶在振动发电机上有很好的应用前景。
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.