Soft Magnetic Nanocrystalline Alloys for High Temperature Applications

Abstract

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2002
Accession Number
ADA517474

Entities

People

  • Frank Johnson
  • John H. Claassen
  • Matthew A. Willard
  • Michael E. Mchenry
  • Rhonda Stroud
  • Vincent G. Harris

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Angular Momentum
  • Crystal Structure
  • Crystallization
  • Curie Temperature
  • Domain Walls
  • Fiber Spinning
  • Grain Size
  • Heat Energy
  • Heat Treatment
  • High Temperature
  • Laboratory Magnetometers
  • Magnetic Materials
  • Magnetic Properties
  • Materials
  • Materials Science
  • Phase Transformations
  • Transitions

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Materials Science and Engineering.
  • Surface Engineering/Surface Coating Technology.