The Effect of Niobium and Boron Content on Magnetic Properties and Corrosion Resistance of Pr-Fe-Co-B-Nb HD Magnets

Abstract:

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The hydrogenation decrepitation process was employed to produce sintered magnets using a mixture of two alloys. The effect of niobium and boron content on the magnetic properties of Pr14FebalCo16BxNby-type sintered magnets was studied. Niobium and boron have a significant effect on the magnetic behavior of these permanent magnets. The optimum amount of boron was 6 at% and niobium should be kept below to 0.50 at%. The squareness factor (0.90) has been improved considerably and good overall magnetic properties (Br=1320 mT, iHc=700 kAm-1 and (BH)max=315 kJm-3) have been achieved for the sintered magnets prepared from the Pr14Fe63.85Co16B6Nb0.15 alloy.

Info:

Periodical:

Materials Science Forum (Volumes 591-593)

Edited by:

Lucio Salgado and Francisco Ambrozio Filho

Pages:

96-101

DOI:

10.4028/www.scientific.net/MSF.591-593.96

Citation:

J.D. Angelo et al., "The Effect of Niobium and Boron Content on Magnetic Properties and Corrosion Resistance of Pr-Fe-Co-B-Nb HD Magnets", Materials Science Forum, Vols. 591-593, pp. 96-101, 2008

Online since:

August 2008

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$35.00

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