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Effects of preparation processes on structure and magnetic properties of Nd2Fe14B/α–Fe-type nanocomposite magnets

Published online by Cambridge University Press:  26 November 2012

Bao-zhi Cui ,
X. K. Sun ,
L. Y. Xiong ,
Wei Liu ,
Zhi-dong Zhang ,
Zhi-qing Yang ,
Ai-min Wang  and
Jiang-ning Deng
Bao-zhi Cui*
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China
X. K. Sun
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China
L. Y. Xiong
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China
Wei Liu
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China
Zhi-dong Zhang
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China
Zhi-qing Yang
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China
Ai-min Wang
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China
Jiang-ning Deng
Affiliation:
Electron Microscopy Laboratory, Northeastern University, Shenyang 110006, People's Republic of China
*
a)Address all correspondence to this author. e-mail: cuibz@yahoo.com
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Abstract

The structure and magnetic properties of Nd8.4Fe86Mo1.1B4.5 nanostructured magnets prepared by mechanical alloying (MA), compared with those by mechanical milling (MM), were studied. The intrinsic coercivity μ0Hc, the reduced remanence Jr/Js, and the maximum magnetic energy product (BH)max for Nd8.4Fe86Mo1.1B4.5 magnets were prepared by MM were notably higher than the values of the corresponding MA-prepared samples. The average grain sizes of both α–Fe and Nd2Fe14B in the MM-prepared samples were measurably smaller than corresponding values of the MA-prepared samples. A more homogeneous distribution of α–Fe grains in the MM-prepared samples than in the MA-prepared samples was obtained.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 3 , March 2001 , pp. 709 - 715
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Manaf, A., Buckley, R.A., and Davies, H.A., J. Magn. Magn. Mater. 128, 302 (1993).Google Scholar
2.Withanawasam, L., Hadjipanayis, G.C., and Krause, R.F., J. Appl. Phys. 75, 6646 (1994).Google Scholar
3.Wecker, J., Schnitzke, K., Cerva, H., and Grogger, W., Appl. Phys. Lett. 67, 563 (1995).Google Scholar
4.Jurczyk, M., Collocott, S.J., Dunlop, J.B., and Gwan, P.B., J. Phys. D: Appl. Phys. 29, 2284 (1996).Google Scholar
5.Skomski, R. and Coey, J.M.D., Phys. Rev. B 48, 15812 (1993).CrossRefGoogle Scholar
6.Kneller, E.F. and Hawig, R., IEEE Trans. Magn. 27, 3588 (1991).Google Scholar
7.Yang, J.L., Wang, Q., Sun, X.K., Zeng, G.Y., Chen, M., Liu, W., Zhao, X.G., Zhao, T., and Zhang, Z.D., J. Magn. Magn. Mater. 132, 197 (1994).Google Scholar
8.Klug, H.P. and Alexander, L.E., X-ray Diffraction Procedures For Polycrystalline and Amorphous Materials, 2nd ed. (John Wiley & Sons, New York, 1974), Chap. 9.Google Scholar
9.Kirkgarrd, P., Eldtup, M., Mogenson, O.E., and Peterson, N., Comput. Phys. Commun. 23, 307 (1981).CrossRefGoogle Scholar
10.Sun, X.K., Zhang, J., Chu, Y.L., Liu, W., Cui, B.Z., and Zhang, Z.D., Appl. Phys. Lett. 74, 1740 (1999).CrossRefGoogle Scholar
11.Yang, C.J. and Park, E.B., J. Magn. Magn. Mater. 168, 278 (1997).CrossRefGoogle Scholar
12.Tang, S.L., Wu, C.H., Wang, B.W., Jin, X.M., Li, G.S., Ding, B.Z., and Chuang, Y.C., J. Magn. Magn. Mater. 188, 387 (1998).Google Scholar
13.Cui, B.Z., Sun, X.K., Liu, W., Geng, D.Y., Zhang, Z.D., and Zhao, X.G., J. Alloys Compd. 297, 219 (1999).Google Scholar
14.Moser, P., Solid-State Physics in Positron, edited by Brandt, W. and Dupasquier, A. (North-Holland, Amsterdam, New York, Oxford, 1983), p. 679.Google Scholar
15.Xiong, D.K., Sun, X.K., Xiong, L.Y., Liu, W., Zhao, T., and Zhang, Z.D. (unpublished).Google Scholar