Study on the Ordered Phases with Long Period in the Gold-Zinc Alloy System : II. Structure Analysis of Au_3Zn[R_1], Au_3Zn[R_2] and Au_<3+>Zn
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概要
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Crystal structures of the ordered phases, Au_3Zn[R_1], Au_3Zn[R_2] and Au_<3+>Zn are investigated by X-ray diffraction using single crystals. The structure models proposed by Wilkens and Schubert for Au_3Zn[R_2] and Au_<3+>Zn are confirmed substantially, but partly corrected. The structure analysis of a new phase Au_3Zn[R_1] is given, and the stacking faults present in this phase is investigated. It is suggested that the complicated atom shifts similar to those in Au_3Zn[R_1] and Au_3Zn[R_2] take place also in Au_<3+>Zn. It is proposed that such complicated atom shifts seem to be a phenomenon not peculiar to the ordered phases in the Au-Zn alloy system but common to the ordered phases with long periods, such as Au_3Cd, Ag_3Mg, Cu_3Pd, CuAu II.
著者
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Iwasaki Hiroshi
The Research Instisuse For Iron Steel And Other Metals Tohoku University
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Iwasaki Hiroshi
The Research Institute For Iron Steel And Other Metals
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