Two-Dimensional Antiphase Structures of the 2d-Cu3Pd Type Studied by High Voltage, High Resolution Electron Microscopy
- 1 June 1981
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 20 (6), L381-384
- https://doi.org/10.1143/jjap.20.l381
Abstract
Structure images of the Cu-28 at.%Pd, Au-17 at.%Zn and Au-16.1 at.%Mg alloys having the 2d-Cu3Pd type structure were studied by 1 MV electron microscope. It was shown that deviation of alloy composition from stoichiometric A3B is accommodated at the second kind boundaries; a strong tendency of avoiding the formation of nearest neighbour pairs of Zn (or Mg) atom across the boundaries is observed in the Au-Zn and Au-Mg alloys, whereas an opposite tendency is seen in the Cu-Pd alloy. Part of the deficiency of Zn (or Mg) atoms is accommodated also at the first kind boundaries.Keywords
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