Unusual high B s for Fe-based amorphous powders produced by a gas-atomization technique

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Abstract

Fe-based alloy powders with a high Fe content of about 81 at.% were produced by a gas-atomization technique. Powders of Fe81Si1.9B5.7P11.4 (at.%) alloy showed a good glass forming ability and exhibited unusual high saturation magnetic flux density of 1.57 T. The core-loss property at a frequency of 100 kHz for the compacted core made of the Fe81Si1.9B5.7P11.4 powder is evaluated to be less than 500 kW/m3 under a maximum induction of 100 mT. Moreover, good DC-superposition characteristic of the core was also confirmed. These results suggest that the present Fe-based alloy powder is promising for low-loss magnetic-core materials and expected to contribute in miniaturization of electric parts in the near future.

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Yoshida, K., Bito, M., Kageyama, J., Shimizu, Y., Abe, M., & Makino, A. (2016). Unusual high B s for Fe-based amorphous powders produced by a gas-atomization technique. AIP Advances, 6(5). https://doi.org/10.1063/1.4944765

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