Soft Magnetic Nanocrystalline Alloys for High Temperature Applications

Soft Magnetic Nanocrystalline Alloys for High Temperature Applications

High temperature inductor applications require improved magnet performance, including simultaneous high magnetization and low core losses at ever higher operation frequencies. Conventional polycrystalline soft magnet alloys are mature technologies with little room for meaningful improvement. Recentl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Willard, Matthew A, Johnson, Frank, Claassen, John H, Stroud, Rhonda M, McHenry, Michael E, Harris, Vincent G
Format: Report
Sprache:eng
Schlagworte:
Crystallography
FREQUENCY
HIGH TEMPERATURE
HIGH TEMPERATURE MAGNETS
HITPERM
HYSTERESIS
MAGNETIC ALLOYS
MAGNETIC PROPERTIES
MAGNETIZATION
MATERIALS
Metallurgy and Metallography
NANOCRYSTALLINE
NANOCRYSTALLINE SOFT MAGNETS
POLYCRYSTALLINE
REPRINTS
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Beschreibung
Zusammenfassung:High temperature inductor applications require improved magnet performance, including simultaneous high magnetization and low core losses at ever higher operation frequencies. Conventional polycrystalline soft magnet alloys are mature technologies with little room for meaningful improvement. Recently, nanocrystalline soft magnetic materials possessing reduced hysteretic losses and offering higher operation frequencies than conventional alloys have been introduced. These nanocrystalline soft magnets with compositions Fe-Co-Zr-B-(Cu) have been offered as alternatives to the conventional alloys. This paper describes the processing, structure, and magnetic properties of these materials. Published in Materials Transactions-JIM, v43 n8 p2000-2005, 2002. Prepared in collaboration with Carnegie Mellon University, Pittsburgh, PA.