Paper Title:
Axial Pressing Method Using Pulse Magnetizing Field for the Preparation of Nd-Fe-B Sintered Magnets
  Abstract

A new axial pressing method using pulse magnetizing field was studied to improve the remanence of Nd-Fe-B sintered magnets. In pulsed axial die pressing(PADP) process , tapping density of powders, method of pulse supply and strength of pulse field were optimized to increase magnetic alignment and remanence. As a results, we could find that an axial pressing under pulse magnetizing field was very effective to increase the degree of magnetic alignment of powder, yielding remanences even higher than those obtained by the transverse die pressing. The remanence of 14.1 kG was easily obtained by PADP process from 31R-68TM-1B (in wt.%) sintered magnet

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
505-508
DOI
10.4028/www.scientific.net/MSF.449-452.505
Citation
D. H. Kim, A. S. Kim, S. M. Kim, T. S. Jang, "Axial Pressing Method Using Pulse Magnetizing Field for the Preparation of Nd-Fe-B Sintered Magnets", Materials Science Forum, Vols. 449-452, pp. 505-508, 2004
Online since
March 2004
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Price
$32.00
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