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Effect of Nd content on the magnetic properties and crystallographic alignment of Fe–Nd–B–Al sintered magnets

Published online by Cambridge University Press:  31 January 2011

W. Kaszuwara ,
M. Leonowicz  and
H. A. Davies
W. Kaszuwara
Affiliation:
Faculty of Materials Science and Engineering, Warsaw University of Technology, Narbutta 85, 02–524 Warszawa, Poland
M. Leonowicz
Affiliation:
Faculty of Materials Science and Engineering, Warsaw University of Technology, Narbutta 85, 02–524 Warszawa, Poland
H. A. Davies
Affiliation:
Department of Engineering Materials, The University of Sheffield, Sheffield S1 4DU, United Kingdom
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Abstract

The magnetic properties and crystallographic alignment for Fe–Nd–B–Al magnets having different Nd contents were studied. It was found that higher Nd concentration (above 18 at. %) resulted in deterioration of the alignment. Also, extended ball milling of the powder particles resulted in poorer alignment of the grains in the final sintered magnet. This behavior was attributed to the cold welding of the small particles of the Fe14Nd2B phase by a mechanically soft Nd-rich phase in the course of ball milling.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 10 , October 1997 , pp. 2715 - 2718
Copyright
Copyright © Materials Research Society 1997

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References

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