Study of the Long-Period Ordered Alloy Cu_3Pt
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概要
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The existence range of the one-dimensional long-period ordered alloy Cu_3Pt (L1_<2-s>) on the equilibrium diagram has been determined by X-ray diffraction, single crystal specimens having been prepared and quenched at various temperatures. As the result it has become clear that there occurs a two-step transition L1_2⇾L1_<2-s>⇾A1 by heating-up in this alloy system, and this transition has been confirmed by specific heat measurements. The half long-period M of L1_<2-s> phase has been measured from separations of split superlattice reflections. M increases with decreasing platinum content, and the behavior of this concentration dependence is well explained by the relation between M and e/a based on Sato-Toth's idea. M decreases as the temperature approaches T_c, in the same way as in Cu_3AuII but contrary to the behavior in Ag_3Mg. Some argument is given on the temperature dependence of M and the degree of order in the long-period lattice of Cu_3Pt.
- 社団法人日本物理学会の論文
- 1973-02-05
著者
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Iwasaki Hiroshi
The Research Institute For Iron Steel And Other Metals Tohoku University
-
Terada Akira
The Research Institute For Iron Steel And Other Metals
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Ogawa Shiro
The Research Institute For Iron Steel And Other Metals
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Ogawa Shiro
The Rcsearch Institute For Iron Steel And Other Metals Tohoku University
-
Iwasaki Hiroshi
The Research Instisuse For Iron Steel And Other Metals Tohoku University
-
Iwasaki Hiroshi
The Research Institute For Iron Steel And Other Metals
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