Pure-iron/iron-based-alloy hybrid soft magnetic powder cores compacted at ultra-high pressure
Source abstract
Abstract
We developed Fe/FeSiAl soft magnetic powder cores (SMCs) for realizing the miniaturization and high efficiency of an electromagnetic conversion coil in the high-frequency range (∼20 kHz). We found that Fe/FeSiAl SMCs can be formed with a higher density under higher compaction pressure than pure-iron SMCs. These SMCs delivered a saturation magnetic flux density of 1.7 T and iron loss (W1/20k) of 158 kW/m3. The proposed SMCs exhibited similar excellent characteristics even in block shapes, which are closer to the product shapes.
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Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Magnetic Properties and Applications · Magnetic Properties of Alloys
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Affiliations
Sumitomo Electric Industries, Ltd. 1 , 1-1-1 Koya-kita, Itami, Hyogo 664-0016, Japan
Sumitomo Electric Sintered Alloy, Ltd. 2 , 1-1-1 Koya-kita, Itami, Hyogo 664-0016, Japan
References (2)
Show source-provided references
1. Development of high density and low iron-loss soft magnetic powder core
2. Influence of the surficial iron-oxide of pure-iron-based soft magnetic powder cores on the magnetic properties