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Praseodymium and Neodymium-Based Nanocrystalline Hard Magnetic Alloys

Published online by Cambridge University Press:  21 February 2011

H.A. Davies ,
C.L. Harland ,
R.J.I. Betancour  and
S.G. Mendoza
H.A. Davies
Affiliation:
Department of Engineering Materials, University of Sheffield, Sheffield S1 3JD, UKh.a.davies@sheffield.ac.uk
C.L. Harland
Affiliation:
Department of Engineering Materials, University of Sheffield, Sheffield S1 3JD, UK
R.J.I. Betancour
Affiliation:
Department of Engineering Materials, University of Sheffield, Sheffield S1 3JD, UK
S.G. Mendoza
Affiliation:
Department of Engineering Materials, University of Sheffield, Sheffield S1 3JD, UK
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Abstract

The magnetic properties of nanophase exchange enhanced RE-Fe-B based alloys ribbons prepared by melt spinning are presented and discussed. The alloy systems investigated include NdyFe94−yB6 and PryFe94−yB6, for y within the range 6-20 at%, and the data are compared in the context of the larger anisotropy field for the Pr2Fe14B phase in comparison with Nd2Fe14B. Experimental studies are also reported for nanophase (Nd-Pr)- Fe-B alloys with various proportions of Nd:Pr, to investigate the increase in coercivity of NdFeB by partial substitution of Nd by Pr, and for (Nd, Pr)-(Fe-Co)-B-based systems, to study the degree to which the remanence enhancement can be maintained for alloys in which Co substitutes for Fe to increase the thermal stability.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 577: Symposium H – Advanced Hard and Soft Magnetic Materials , 1999 , 27
Copyright
Copyright © Materials Research Society 1999

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References

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