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Short-Range Order in α-Brass

Published online by Cambridge University Press:  21 February 2011

L. Reinhard
Affiliation:
Angewandte Physik, ETH Zürich, CH-8093 Zürich, Switzerland now at Physics Department, University of Houston, Houston, TX 77204-5504
B. Schoenfeld
Affiliation:
Angewandte Physik, ETH Zürich, CH-8093 Zürich, Switzerland
G. Kostorz
Affiliation:
Angewandte Physik, ETH Zürich, CH-8093 Zürich, Switzerland
W. Buehrer
Affiliation:
Lab. f. Neutronenstreuung der ETHZ, CH-5303 WUrenlingen, Switzerland
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Abstract

Quenched equilibrium states of Cu–31.1 at.% Zn and Cu–22.4 at.% Zn single crystals (prepared with the Cu-65 isotope) were investigated by elastic diffuse neutron scattering. The diffuse intensity showed maxima which are attributed to the flat portions of the Fermi surface in the <110> directions. Short–range order parameters and linear displacement parameters were obtained from a fit to the measured data. Pair interaction energies were determined based on the inverse Monte–Carlo method. An ordered low-temperature phase Cu3Zn with the DO23 structure is suggested.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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