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Optimization of Liquid Dynamic Compaction for Fe-Nd-B Magnet Alloys

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Abstract

Permanent magnets from the Fe77Nd15B8 alloy were produced using liquid dynamic compaction (LDC). Process parameters such as gas and metal mass flow rates were carefully controlled to refine the microstructure. Accordingly, grain sizes between 0.1 and 5 microns were achieved in the LDC compact. In contrast to our earlier LDC results high intrinsic coercivity in excess of 7500 Oe was obtained for thick (> 7 nm) as-LDC’d samples with lower neodymium content.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA

    Y. Hara, E. J. Lavernia, R. C. O’Handley & N. J. Grant

  2. Outokumpu Inc., Toolonkatu 4, P.O.Box 280, 00100, Helsinki, Finland

    Mauri K. Veistinen

Authors
  1. Mauri K. Veistinen
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  2. Y. Hara
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  3. E. J. Lavernia
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  4. R. C. O’Handley
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  5. N. J. Grant
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Veistinen, M.K., Hara, Y., Lavernia, E.J. et al. Optimization of Liquid Dynamic Compaction for Fe-Nd-B Magnet Alloys. MRS Online Proceedings Library 96, 93 (1987). https://doi.org/10.1557/PROC-96-93

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  • DOI: https://doi.org/10.1557/PROC-96-93

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