Development of Improved Powder for Bonded Permanent Magnets

Personnel

Project Leader(s):
Iver Anderson

Principal Investigators:
Iver Anderson, Vladimir Antropov, Bruce Harmon, Kai-Ming Ho, Matthew Kramer, R. William McCallum, Cai-Zhuang Wang

Overview

This project has three main objectives.

  1. Develop high performance permanent magnets (PM) for traction motor with internal PM rotor:
    • requires elevated temperature (180-200°C) operation, minimize cooling needs
    • increased high temperature magnetic performance more critical than RT
  2. Reduce manufacturing cost of PM traction motors:
    • bonded PM can utilize injection or compression molding technology
      • net shape forming for mass production of rotors
  3. Achieve high performance and reliability for bonded magnets:
    • increase volumetric loading
    • minimize irreversible magnetic losses (oxidation)

Publications

2012
Tang W; Xing Q F; Dennis K W; Oster N T; Kramer M J; Anderson I E; McCallum R W . 2012. Anisotropic Hot-Deformed MRE-Fe-B Magnets With Zn Powder Addition (MRE = Nd plus Y plus Dy). IEEE Transactions on Magnetics. 48:3147-3149. abstract
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Mukherjee P; Zhang Y; Kramer M J; Lewis L H; Shield J E . 2012. L1(0) structure formation in slow-cooled Fe-Au nanoclusters (vol 100, 211911, 2012). Applied Physics Letters. 101:109901. abstract
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Kramer M J; McCallum R W; Anderson I A; Constantinides S . 2012. Prospects for Non-Rare Earth Permanent Magnets for Traction Motors and Generators. JOM. 64:752-763. abstract
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Makridis S S; Tang W . 2012. Structural and magnetic properties of Sm(Co0.7Fe0.1Ni0.12Zr0.04B0.04)(7.5) melt spun isotropic and anisotropic ribbons. Journal of Rare Earths. 30:691-695. abstract
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Mukherjee P; Zhang Y; Kramer M J; Lewis L H; Shield J E . 2012. L1(0) structure formation in slow-cooled Fe-Au nanoclusters. Applied Physics Letters. 100:211911. abstract
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Nguyen M C; Zhao X; Ji M; Wang C Z; Harmon B; Ho K M . 2012. Atomic structure and magnetic properties of Fe1-xCox alloys. Journal of Applied Physics. 111:07e338. abstract
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Oster N T; Cavanaugh D T; Dennis K W; Kramer M J; McCallum R W; Anderson I E . 2012. Effects of Ag additions on melt-spun RE2Fe14B microstructure and texture. Journal of Applied Physics. 111:07a723. abstract
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Poudyal N; Rong C B; Zhang Y; Wang D P; Kramer M J; Hebert R J; Liu J P . 2012. Self-nanoscaling in FeCo alloys prepared via severe plastic deformation. Journal of Alloys and Compounds. 521:55-59. abstract
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Tang W; Dennis K W; Kramer M J; Anderson I E; McCallum R W . 2012. Studies of sintered MRE-Fe-B magnets by DyF3 addition or diffusion treatment (MRE = Nd+Y+Dy). Journal of Applied Physics. 111:07a736. abstract
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Golkar F; Kramer M J; Zhang Y; McCallum R W; Skomski R; Sellmyer D J; Shield J E . 2012. Structure and magnetic properties of Co-W clusters produced by inert gas condensation. Journal of Applied Physics. 111:07b524. abstract
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