By Topic

Top Nd-Fe-B magnets with greater than 56 MGOe energy density and 9.8 kOe coercivity

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
W. Rodewald ; Vacuumschmelze GmbH & Co. KG, Hanau, Germany ; B. Wall ; M. Katter ; K. Uestuener

Sintered Nd-Fe-B magnets are prepared by powder metallurgy. Besides the composition of the alloy, the alignment of the powder particles is decisive for achieving high remanent polarizations. The alignment of the powder particles can be improved by applying field pulses in addition to an alignment in a constant magnetic field. Alternating field pulses parallel and antiparallel to the easy axis proved to be more efficient than unidirectional field pulses. By such a refined processing route sintered Nd-Fe-B magnets with a remanent polarization of 1.519 T, a coercivity HcJ of 7.8 kA/cm (9.8 kOe), and a maximum energy density of 451 kJ/m3 (56.7 MGOe) could be prepared.

Published in:

IEEE Transactions on Magnetics  (Volume:38 ,  Issue: 5 )