Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T14:50:05.892Z Has data issue: false hasContentIssue false

Competition Between SRO and LRO in CuAu3

Published online by Cambridge University Press:  10 February 2011

M. Kompatscher
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
H. Lang
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
W. Püschl
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
W. Pfeiler
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
Get access

Abstract

Ordering in CuAu3 was investigated by residual resistivity and X-ray scattering. L12 longrange ordering (LRO) in this alloy is quite sluggish, therefore for low quenching temperatures and sufficiently short annealing times only effects of short-range order (SRO) are observed. With increasing quenching temperature and/or increasing annealing time evolution of LRO was observed by both residual resistometry and X-ray scattering. From the resistivity measurements information can be gained on the boundaries of the order-disorder two-phase field. An analysis of SRO-relaxation yields an ordering activation energy of 2.1±0.1 eV.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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. Renaud, G., Belakhovsky, M., Hillairet, J., Wuttig, M., Bessenay, G. and Lefebvre, S., J. de Physique, C8, 519 (1987).Google Scholar
2. Doppler, T. and Pfeiler, W., phys. stat. sol. (a) 131, 131 (1992).Google Scholar
3. Pfeiler, W., Acta metall. 36, 2417 (1988).Google Scholar
4. Chardon, J. Th. and Radelaar, S., phys. stat. sol. 33, 439 (1969).Google Scholar
5. Pfeiler, W., in: Properties of Complex Inorganic Solids (ed. Gonis, A., Meike, A. and Turchi, P.E.A.), Plenum Press, New York 1997, p. 219.Google Scholar
6. Guymont, M., Z. Metallkde. 88, 452 (1997).Google Scholar