Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T01:50:37.907Z Has data issue: false hasContentIssue false
  • English
  • Français

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, [email protected]
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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Keem, J.E., Clemente, G.B., Kadin, A. M. and McCallum, R.W., in: Hard an Soft Magnetic Materials with Applications including Superconductivity, Proc. Conf ASM Materials Week 87, ed. Salsgiver, J.A. (American Society for Metals 1987), p. 87 Google Scholar
2. Coehoorn, R., DeMooij, D. B., Duchateau, J.P.W.B. and Buschow, K.H.J., J. Physique 49, p. 669 (1988).Google Scholar
3. Hadjipanayis, G.C. and Gong, W., J. Appl. Phys. 64, p. 5559 (1988)Google Scholar
4. Manaf, A., Buckley, R.A., Davies, H.A. and Leonowicz, M., J. Mag. Magn. Mater. 101, p. 360 (1991)Google Scholar
5. Manaf, A., Buckley, R.A. and Davies, H.A., J. Magn. Magn. Mater. 128, p. 302 (1993)Google Scholar
6. Davies, H. A., J. Magn. Magn. Mater. 157/8, p. 11 (1996)Google Scholar
7. Croat, J.J, Herbst, J.F., Lee, R.W. and Pinkerton, F.E., J.Appl. Phys. 55, p. 2078 (1984)Google Scholar
8. Stoner, E.C and Wohlfarth, E.P., Phil. Trans. Roy. Soc. A 240, p. 599 (1948)Google Scholar
9. Manaf, A., Zhang, P.Z., Ahmad, I., Buckley, R.A. and Davies, H. A, IEEE Trans. Magn. 29, p. 2866 (1993).Google Scholar
10. Hirosawa, S., Matsuura, Y., Yamamoto, H., Fujimura, S., Sawaga, M. and Yamauchi, H.. J. Appl. Phys. 59, p. 873 (1986)Google Scholar
11. Mendoza, G. and, Davies, H.A., J. Alloys and Compounds. 281, p. 17 (1988).Google Scholar
12. Goll, D., Seeger, M. and Kronmuller, H., J. Magn. Magn. Mater. 185, p. 49 (1998)Google Scholar
13. Goll, D. and Kronmuller, H., Proc. 15th Int. Workshop RE Magnets and their Applications, eds. Schultz, L. and Muller, K-H. (MATINFO, Frankfurt 1998), p. 189.Google Scholar
14. Ding, J., McCormick, P.G. and Street, R., J. Magn. Magn. Mater. 124, p. 1 (1993).Google Scholar
15. Liu, J.F. and Davies, H.A., J. Magn. Magn. Mater. 157–158, p. 29 (1996).Google Scholar
16. Yapp, R., and Davies, H. A., Proc. 14th Int.Workshop on Rare-Earth Magnets and their Applications, eds. Missel, F.P. et al. (World Scientific Singapur 1996), p. 563..Google Scholar
17. Yapp, R. and Davies, H. A., Proc. 15th Int. Workshop RE Magnets and their Applications, eds. Schultz, L. and Muller, K-H. (MATINFO, Frankfurt 1998), p. 315 Google Scholar
18. Sequeira, W.P., Dobson, S.J., Buckley, R.A., and Davies, H.A., Mat. Lett. 15, p. 376 (1993).Google Scholar
19. Betancourt, J. I. and Davies, R. H. A., J. Appi. Phys. 85, (1999) in the press.Google Scholar
20. Yapp, R., Davies, H. A., Leccabue, F. and Watts, B.E., Mater. Lett. 38, p. 33 (1999).Google Scholar
21. Harland, C.L., Davies, H.A., Watts, B.E and Lecabbue, F., 15th Int. Workshop RE Magnets and their Applications, eds. Schultz, L and Muller, K-H. (MATINFO, Frankfurt 1998), p. 263.Google Scholar
22. Carr, G.E, Davies, H.A and Buckley, R.A., Mater. Sci. Eng. 99, p. 147 (1988)Google Scholar
23. Kneller, F.F. and Hawig, R., IEEE Trans. Magn. 27, p. 3588 (1991).Google Scholar
24. Harland, C.L. and Davies, H.A., to be published.Google Scholar