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New method for the production of bulk amorphous materials of Nd–Fe–B alloys

Published online by Cambridge University Press:  01 March 2005

Tetsuji Saito ,
Hiroyuku Takeishi  and
Noboru Nakayama
Tetsuji Saito*
Affiliation:
Department of Mechanical Science and Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
Hiroyuku Takeishi
Affiliation:
Department of Mechanical Science and Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
Noboru Nakayama
Affiliation:
Department of Machine Intelligence and Systems Engineering, Akita Prefectural University, Honjyo, Akita 015-0055 Japan
*
a)Address all correspondence to this author. e-mail: tetsuji@pf.it-chiba.ac.jp
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Abstract

We report a new compression shearing method for the production of bulk amorphous materials. In this study, amorphous Nd–Fe–B melt-spun ribbons were successfully consolidated into bulk form at room temperature by the compression shearing method. X-ray diffraction and transmission electron microscopy studies revealed that the amorphous structure was well maintained in the bulk materials. The resultant bulk materials exhibited the same magnetic properties as the original amorphous Nd–Fe–B materials.

Keywords

Cold workingMagnetic propertiesMetallic glass
Type
Rapid Communications
Information
Journal of Materials Research , Volume 20 , Issue 3 , March 2005 , pp. 563 - 566
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1.Duwez, P. and Willens, R.H.: Rapid quenching of liquid alloys. Trans. Metall. Soc. AIME 227, 362 (1963).Google Scholar
2.Masumoto, T., Ohnaka, I, Inoue, A. and Hagiwara, M.: Production of Pd–Cu–Si amorphous wires by melt spinning method using rotating water. Scripta Metall. 15, 293 (1981).CrossRefGoogle Scholar
3.Pond, R. and Maddin, R.: A method of producing rapidly solidifies filamentary castings. Trans. Metall. Soc. AIME 245, 2475 (1969).Google Scholar
4.Maringer, R.E. and Mobley, C.E.: Casting of metallic filament and fiber. J. Vac. Sci. Technol. 11, 1067 (1974).CrossRefGoogle Scholar
5.Grant, N.J.: A review of various atomization processes, in Rapid Solidification Processing, Principles and Technologies, edited by Mehrabian, R., Kear, B.H., and Cohen, M. (Claitors's Publishing Division, Baton Rough, LA, 1977), p. 230.Google Scholar
6.Murr, L.E., Shankar, S., Hare, A.W. and Staudhammer, K.P.: Explosive consolidation of an amorphous iron-base powder. Scripta Metall. 17, 1353 (1983).Google Scholar
7.Negishi, T., Ogura, T., Masumoto, T., Goto, T., Fukuoka, K. and Syono, Y.: Dynamic compaction of amorphous Ni75Si8B17 and Pd78Cu6Si16 alloys. J. Mater. Sci. 20, 399 (1985).Google Scholar
8.Inoue, A. and Takeuchi, A.: Bulk amorphous, nano-crystalline and nano-quasicrystalline alloys IV. Recent progress in bulk glassy alloys. Mater. Trans. 43, 1892 (2002).CrossRefGoogle Scholar
9.Xu, D., Lohwongwatana, B., Duan, G., Johnson, W.L. and Garland, C.: Bulk metallic glass formation in binary Cu-rich series-Cu100−xZrx (x = 34, 36, 38.2, 40 at.%) and mechanical properties of bulk Cu64Zr36 glass. Acta Mater. 52, 2621 (2004).CrossRefGoogle Scholar
10.Harada, T., Kuji, T., Fukuoka, K. and Syono, Y.: Dynamic compaction of amorphous Nd15Fe77B8 alloy powders. J. Mater. Sci. Lett. 11, 1072 (1990).CrossRefGoogle Scholar
11.Coehoorn, R., de Mooij, D.B. and de Waard, C.: Melt-spun permanent magnet materials containing Fe3B as the main phase. J. Magn. Magn. Mater. 80, 101 (1989).CrossRefGoogle Scholar
12.Schneider, G., Henig, E.T., Petzow, G. and Stadelmaier, H.H.: Phase relations in the system Fe–Nd–B. Z. Metallkunde. 77, 775 (1986).Google Scholar
13.Bao-gen, S., Lin-yuan, Y., Jun-xain, Z., Feng, W., Tai-shan, N., Jian-gao, Z., Hui-qun, G. and Wen-shan, Z.: Magnetic properties of amorphous (Fe1−xCox)77.5Nd4B18.5 alloys and the effects of heat treatment on its hard magnetic properties. J. Magn. Magn. Mater. 96, 335 (1991).CrossRefGoogle Scholar
14.Saito, T.: Production of bulk materials of an Nd4Fe77.5B18.5 alloy and their magnetic properties. IEEE Trans. Mag. 37, 2561 (2001).CrossRefGoogle Scholar