Studies on in situ magnetic alignment of bonded anisotropic Nd-Fe-B alloy powders [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy - Physical Description
- pages 168-173 : digital, PDF file
- Additional Creators
- Lawrence Livermore National Laboratory, United States. Department of Energy. Office of Energy Efficiency and Renewable Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- We presented some considerations for achieving high degree of alignment in polymer bonded permanent magnets via the results of a study on in situ magnetic alignment of anisotropic Nd-Fe-B magnet powders. Contributions from effect of the alignment temperature, alignment magnetic field and the properties of the polymer on the hard magnetic properties of the bonded magnet were considered. Moreover, the thermo-rheological properties of the polymer and the response of the magnet powders to the applied magnetic field indicate that hard magnetic properties were optimized at an alignment temperature just above the melting temperature of the EVA co-polymer. This agrees with an observed correlation between the change in magnetization due to improved magnetic alignment of the anisotropic powders and the change in viscosity of the binder. Finally, manufacturing cost can be minimized by identifying optimum alignment temperatures and magnetic field strengths.
- Report Numbers
- E 1.99:llnl-jrnl--698023
llnl-jrnl--698023 - Subject(s)
- Note
- Published through SciTech Connect.
08/30/2016.
"llnl-jrnl--698023"
Journal of Magnetism and Magnetic Materials 422 C ISSN 0304-8853 AM
I. C. Nlebedim; Huseyin Ucar; Christine B. Hatter; R. W. McCallum; Scott K. McCall; M. J. Kramer; M. Parans Paranthaman. - Funding Information
- AC52-07NA27344
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