Fe基金属ガラスにおけるコアロスの板厚および周波数依存性

概要

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The dependence of the core loss for Fe_<70>Al_5Ga_2P_<9.65>C<5.75>B<4.6>Si_3 glassy alloy on the sample thickness and frequency was investigated in a ring-shaped form with the aim of clarifying the application potential. As a result of loss separation, the hysteresis loss of this alloy is not affected by increasing the ribbon thickness to 87 μm. On the other hand, the eddy current loss is affected by increasing the ribbon thickness, and the anomaly factor of this alloy is larger than that of 6.5%Si-Fe alloy for a sample thickness of 50 μm. At the same sample thickness, however, the core losses of this alloy are 50-80% smaller than those of 6.5%Si-Fe alloy in the frequency range from 50 Hz to 10 kHz. Comparison of the present data with those for 6.5%Si-Fe alloy indicates that Fe-Al-Ga-P-C-B-Si glassy alloys show promising potential for practical use as core materials.
社団法人日本磁気学会の論文
1999-03-01