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Crystal Structure of ζ2' Martensite in Au-49.5at%Cd Alloy

Published online by Cambridge University Press:  25 February 2011

Yutaka Emura ,
Takuya Ohba  and
Kazuhiro Otsuka
Yutaka Emura
Affiliation:
Graduate Student, Doctoral Program in Engineering, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
Takuya Ohba
Affiliation:
Department of Materials Science and Engineering, School of Science and Engineering, Teikyo University, 1-1 Toyosatodai, Utsunomiya 320, Japan
Kazuhiro Otsuka
Affiliation:
Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
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Abstract

Crystal structure of the ζ2' martensite in a Au-49.5at%Cd ally has been analyzed by the single crystal x-ray diffraction method. The crystal lattice was trigonal and the lattice constants were a:0.8095(3) and c=o.57940(6) nm. There were 18 atoms in a unit cell. The space group was P3, which was different from that previously determined by Vatanayon and Hehemann. The structure was refined by the full matrix least squares method to a final R factor of 7.8% and a weighted R factor of 4.1%.

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