New Amorphous Ferromagnets with Low Coercive Force
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概要
- 論文の詳細を見る
Soft-ferromagnetic properties have been studied for two amorphous alloy systems of (Fe_<1-x>Co_x)_<80>P_<13>C_7 and (Fe_<1-x>Co_x)_<75>Si_<15>B_<10> by means of the X-ray diffraction, thermo-electrical resistance, thermo-magnetization and B-H loop. The B-H loops measured using straight samples were highly rectangular for the as-quenched state. The ratio of the remanence to the saturation magnetization are small (0.4〜0.6) for all the alloys. The alloy of Fe_5Co_<70>Si_<15>B_<10> has a very small value of coercive force, 0.01 Oe, and the high value of the maximum permeability, 120, 000. The magnetic field annealing has been found to be very effective in improving the low-field magnetic properties. These excellent soft-magnetic properties may be attributed to the zero-magnetostriction and the isotropic nature of the amorphous structure.
- 東北大学の論文
著者
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Fujimori Hiroyasu
The Research Institute For Iron Steel And Other Metals
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Obi Yoshihisa
The Research Institute For Iron Steel And Other Metals
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Masumoto Tsuyoshi
The Research Institute For Iron Steel And Other Metals
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KIKUCHI Michio
The Research Institute of Electric and Magnetic Alloys
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