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Highest performance of Nd-Fe-B magnet over 55 MGOe

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1 Author(s)
Y. Kaneko ; R&D Div., Sumitomo Special Metals Co. Ltd., Osaka, Japan

In order to develop high energy Nd-Fe-B magnets, extensive studies of processing technologies have been done. With a new casting technology for Nd-Fe-B alloys, improvement of the preparation of fine powders having a sharp distribution of particle size, and adoption of a special CIP process, we have succeeded in obtaining the high performance 444 kJ/m3 (55.8 MGOe) magnet. Based on these advanced technologies, we have started mass-production of the high performance 400 kT/m3 Nd-Fe-B magnets

Published in:

IEEE Transactions on Magnetics  (Volume:36 ,  Issue: 5 )