Soft magnetic composites, which are fabricated based on metallic magnetic powders via insulation coating, binding, compaction, and annealing, serve as the key fundamental material in various fields including energy, transportation, aerospace, and national defense. Due to the low-electrical-resistivity nature of the soft magnetic alloys, it is challenging to control the eddy current loss, which has become a bottle-neck problem for high-frequency applications.
Sodium nitrate passivation as a novel insulation technology for soft magnetic composites
