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Disintegration and Powder Formation of Nb75M25 (M = Al, Si, Ga, Ge, and Sn) Due to Hydrogenation in an Arc-melting Chamber

Published online by Cambridge University Press:  31 January 2011

Xingguo Li ,
Akihiko Chiba ,
Seiki Takahashi  and
Katsuhisa Ohsaki
Xingguo Li
Affiliation:
Department of Materials Science and Technology, Faculty of Engineering, Iwate University, Morioka, 020, Japan
Akihiko Chiba
Affiliation:
Department of Materials Science and Technology, Faculty of Engineering, Iwate University, Morioka, 020, Japan
Seiki Takahashi
Affiliation:
Department of Materials Science and Technology, Faculty of Engineering, Iwate University, Morioka, 020, Japan
Katsuhisa Ohsaki
Affiliation:
Steel and Technology Development Laboratory, Nisshin Steel Co., LTD., Ichikawa, 272, Japan
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Abstract

Nb75M25 (M = Al, Si, Ga, Ge, and Sn) alloy ingots were prepared by the conventional arc-melting method and then were directly reacted with high purity hydrogen of 0.1 MPa in an arc-;melting chamber without exposing the ingots to air. As the clean surface of the arc-;melted ingots is preserved, the ingots rapidly absorb a large amount of hydrogen without any activation treatments and disintegrate violently into fine particles. The disintegration of ingots depends on the M element. The collected particles are investigated by x-ray diffraction, electron microscopy, chemical analysis, and thermal analysis. The particles are hydrides of Nb75M25 after hydrogenation and have a sharp-edged polygonal appearance. After dehydriding, fine Nb3M powders with A15 crystalline structure are obtained except for Nb75Si25. In comparison with the atomized Nb3M powders, the Nb3M powders prepared by the present study have a smaller average particle size and lower impurity contents.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 9 , September 1998 , pp. 2526 - 2532
Copyright
Copyright © Materials Research Society 1998

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References

1.Laverik, C., J. Less-Comm. Met. 139, 107 (1988).CrossRefGoogle Scholar
2.Akihama, R., Murphy, R. J., and Foner, S., IEEE Trans. Magn. 17, 274 (1981).CrossRefGoogle Scholar
3.Ekin, J. W., Adv. Crys. Eng. Mater. 30, 823 (1983).Google Scholar
4.Barmak, K., Coffer, K. R., Rudman, D. A., and Foner, S., J. Appl. Phys. 67, 7313 (1990).CrossRefGoogle Scholar
5.Hong, M. and Morris, J. W., Jr., Appl. Phys. Lett. 37, 1044 (1980).CrossRefGoogle Scholar
6.Murayama, Y., Hanada, S., and Obara, K., Mater. Trans. JIM 34, 325 (1993).CrossRefGoogle Scholar
7.Togano, K., Kumakura, H., Yoshida, Y., and Tachikawa, K., IEEE Trans. Magn. 21, 463 (1989).CrossRefGoogle Scholar
8.Watanabe, K., Noto, K., Morita, H., Fujimori, H., and Muto, Y., IEEE Trans. Magn. 25, 1984 (1989).CrossRefGoogle Scholar
9.Thieme, C. L. H., Pourrahimi, S., Schwartz, B. B., and Foner, S., Appl. Phys. Lett. 44, 260 (1984).CrossRefGoogle Scholar
10.Kaneyoshi, T., Takahashi, T., Hayashi, Y., and Motoyama, M., J. Jpn. Powder and Powder Metall. 42, 118 (1994).CrossRefGoogle Scholar
11.Kohmoto, H., Murahashi, N., and Kohno, T., J. Jpn. Powder and Powder Metall. 39, 815 (1992).CrossRefGoogle Scholar
12.Schulze, K., Muller, G., and Petzow, G., J. Less-Comm. Met. 139, 97 (1988).CrossRefGoogle Scholar
13.Schulze, K., Muller, G., and Petzow, G., J. Less-Comm. Met. 158, 71 (1990).CrossRefGoogle Scholar
14.Thieme, C. L. H., Pourrahimi, S., and Foner, S., IEEE Trans. Magn. 25, 1992 (1989).CrossRefGoogle Scholar
15.Schaper, W., Kehlenbeck, M., Zimmerman, I., and Freyhardt, H. C., IEEE Trans. Magn. 25, 1988 (1989).CrossRefGoogle Scholar
16.Li, X. G., Ohsaki, K., Morita, Y., and Uda, M., J. Alloys and Compounds 227, 141 (1995).CrossRefGoogle Scholar
17.Li, X. G., Chiba, A., Ohsaki, K., Morita, Y., and Uda, M., J. Alloys and Compounds 238, 202 (1996).CrossRefGoogle Scholar
18.Reilly, J. J. and Wiswall, R. H., Jr., Inorg. Chem. 13, 218 (1974).CrossRefGoogle Scholar
19.Fujita, K., Huang, Y. C., and Tada, M., Bull. JIM 43, 601 (1979).Google Scholar
20.Ohsumi, Y., Hydrogen Absorbing Alloys—Their Properties and Applications (Agune Technology Center, 1993), p. 65.Google Scholar
21.Kaneyoshi, T., Takahashi, T., Hayashi, Y., and Motoyama, M., J. Jpn. Soc. Powder Powder Metall. 41, 166 (1994).Google Scholar
22.Handbook of Metals, Version 3, edited by the Japan Institute of Metal (1993), p. 216.Google Scholar