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Competition Between SRO and LRO in CuAu3

Published online by Cambridge University Press:  10 February 2011

M. Kompatscher ,
H. Lang ,
W. Püschl  and
W. Pfeiler
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
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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
Information
MRS Online Proceedings Library (OPL) , Volume 481: Symposium P – Science and Technology of Semiconductor Surface Preparation , 1997 , 207
Copyright
Copyright © Materials Research Society 1998

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References

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