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    Advanced Magnetic Materials and Geometries

    T07.2 - Extreme Temperature Nanocrystalline Inductor Design and Demonstration for Medium Frequency Applications

    Tuesday, March 24, 2026
    8:50 AM - 9:10 AM CT
    Location: 217C
    Extreme temperature applications require power supply components capable of handling high temperatures and harsh environmental conditions (corrosion, oxidation, etc.). Magnetic components such as inductors, transformers, and motors for extreme temperature are constrained by the limitations on state-of-the-art materials. In this paper, the first prototype high temperature inductor leveraging new soft magnetic nanocrystalline alloys designed specifically for high temperature continuous operation, referred to as VulcanAlloys, is presented. A gapless core design is combined with advanced permeability engineering techniques to design, fabricate, and test an inductor at operational temperatures of 400-500C. Test results are presented both for small signal analysis within the laboratory and under converter relevant application conditions.