Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-21T09:16:49.704Z Has data issue: false hasContentIssue false
  • English
  • Français

Oxidation and crystallization of an amorphous Zr60Al15Ni25 alloy

Published online by Cambridge University Press:  31 January 2011

X. Sun ,
S. Schneider ,
U. Geyer ,
W. L. Johnson  and
M-A. Nicolet
X. Sun
Affiliation:
California Institute of Technology, Pasadena, California 91125
S. Schneider
Affiliation:
California Institute of Technology, Pasadena, California 91125
U. Geyer
Affiliation:
California Institute of Technology, Pasadena, California 91125
W. L. Johnson
Affiliation:
California Institute of Technology, Pasadena, California 91125
M-A. Nicolet
Affiliation:
California Institute of Technology, Pasadena, California 91125
Get access

Abstract

The amorphous ternary metallic alloy Zr60Al15Ni25 was oxidized in dry oxygen in the temperature range 310 °C to 410 °C. Rutherford backscattering (RBS) and cross-sectional transmission electron microscopy (TEM) studies suggest that during this treatment an amorphous layer of zirconium-aluminum-oxide is formed at the surface. Nickel was depleted in the oxide and enriched in the amorphous alloy near the interface. The oxide layer thickness grows parabolically with annealing duration, with a transport constant of 2.8 × 10−5 m2/s × exp(−1.7 eV/kT). The oxidation rate may be controlled by the diffusion of Ni in the amorphous alloy. At later stages of the oxidation process, precipitates of nanocrystalline ZrO2 appear in the oxide near the interface. Finally, two intermetallic phases nucleate and grow simultaneously in the alloy, one at the interface and one within the alloy. An explanation involving preferential oxidation is proposed.

Type
Articles
Information
Journal of Materials Research , Volume 11 , Issue 11 , November 1996 , pp. 2738 - 2743
Copyright
Copyright © Materials Research Society 1996

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.Inoue, A., Zhang, T., and Masumoto, T., Mater. Trans. JIM 31, 177 (1990).Google Scholar
2.Inoue, A., Zhang, T., and Masumoto, T., Mater. Sci. Eng. A178, 255 (1994).CrossRefGoogle Scholar
3.Zhang, T., Inoue, A., and Masumoto, T., Mater. Trans. JIM 32, 1005 (1991).CrossRefGoogle Scholar
4.Peker, A. and Johnson, W. L., Appl. Phys. Lett. 63, 2342 (1993).CrossRefGoogle Scholar
5.Chu, W. K., Mayer, J. W., and Nicolet, M-A., Backscattering Spectrometry (Academic Press, New York, 1978).Google Scholar
6.Sugiyama, K., Waseda, Y., and Kudo, S., ISIJ Int. 31, 1362 (1991).Google Scholar
7.CRC Handbook of Chemistry and Physics, edited by Weast, R. C. and Astle, M. J. (CRC Press, Inc., West Palm Beach, FL, 1979), p. B92.Google Scholar
8.Kay, D. H., Techniques for Electron Microscopy, 2nd ed. (F. A. Davis, Philadelphia, 1965), Chap. 8.Google Scholar
9.Kubaschewski, O., Alcock, C. B., and Spencer, P. J., Materials Thermochemistry, 6th ed. (Pergamon Press, Oxford, 1993).Google Scholar
10.Zhuying, Z., in High Energy and Heavy Ion Beams in Materials Analysis, edited by Tesmer, J. R., Maggiore, C. J., Nastasi, M., Barbour, J. C., and Mayer, J. W. (Mater. Res. Soc. Symp. Proc. HIB, Pittsburgh, PA, 1990).Google Scholar
11.Birchenall, C. E., Oxidation of Alloys (American Society for Metals, Metals Park, OH, 1970), Chap. 13.Google Scholar
12.Park, S-G., Liu, W. S., and Nicolet, M-A., J. Appl. Phys. 75, 1764 (1994).Google Scholar
13.Barin, I., Thermochemical Data for Pure Substances (VCH Verlagsgesellschaft mbH, D-6940 Weinheim, Germany, 1989).Google Scholar
14.Sachs, K., Iron, J.Steel Inst. 187, 93 (1957).Google Scholar
15.Wagner, C., J. Electrochem. Soc. 103, 571 (1956).Google Scholar