Magnetomechanical damping capacity of Tb/sub x/Dy/sub 1-x/Fe/sub 1.92/(0.30/spl les/x/spl les/0.50) alloys
Magnetomechanical damping capacity of Tb/sub x/Dy/sub 1-x/Fe/sub 1.92/(0.30/spl les/x/spl les/0.50) alloys
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DOI：
10.1109/tmag.2003.816166
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发表时间：
2003-09
影响因子：
2.1
通讯作者：
M. Wun-Fogle;J. Restorff;A. Clark;J. Snodgrass
中科院分区：
文献类型：
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作者：
M. Wun-Fogle;J. Restorff;A. Clark;J. Snodgrass
测量了Tb/subx/Dy/sub1-x/Fe/sub1.92/(x=0.30、0.33、0.40、0.45和0.50)材料在0~1600 Oe范围内的应力应变滞后损耗。应力范围从/SPL sim/0到-10、-20、-40和-60 Mpa(负号表示压缩应力)。随着Tb浓度和磁各向异性的增加，磁滞回线面积从x=0.30时的5.7kJ/m/sup3/增加到x=0.50时的10kJ/m/sup3/。随着磁场的增加，磁滞回线的位置向更大的压应力方向移动，从而使阻尼的强度可以由磁场控制。
The stress-strain hysteresis losses of Tb/sub x/Dy/sub 1-x/Fe/sub 1.92/(x=0.30, 0.33, 0.40, 0.45, and 0.50) were measured at a variety of magnetic fields between 0 and 1600 Oe. Stress ranges from /spl sim/0 to -10, -20, -40, and -60 MPa (the minus sign indicates compressive stresses) were used. The hysteresis loop area increased from 5.7 kJ/m/sup 3/ at x=0.30 to 10 kJ/m/sup 3/ at x=0.50 as the Tb concentration and the magnetic anisotropy increased. The position of the hysteresis loop shifted to larger compressive stresses as the magnetic field was increased allowing the strength of the damping to be controlled by the magnetic field.