Фазовая диаграмма системы Cr-Tc

К оглавлению: Другие диаграммы (Others phase diargams)


Cr-Tc (Chromium-Technetium) M. Venkatraman and J.P. Neumann Although data on the Cr-Tc system are limited, the Cr-Tc phase diagram is expected to be similar to the Cr-Re diagram, because the alloying behavior of Tc is similar to that of Re. The existence of s-type structures at 60 and 75 at.% Tc has been reported [61Dar, 62Dar]. Although no intermediate compositions have been investigated, it is very likely that the two alloys belong to the same phase, whose homogeneity range extends at least from 60 to 75 at.% Tc. The superconducting transition temperature of pure Tc (7.8 K) has been reported to be lowered to 6.7 K by the addition of 4.4 at.% Cr. 61Dar: J.B. Darby, Jr. and D.J. Lam, U.S. At. Energy Comm., Argonne National Laboratory, Rep. ANL-6516, 254-256 (1961). 62Dar: J.B. Darby, Jr., D.J. Lam, L.J. Norton, and J.W. Downey, J. Less-Common Met., 4, 558-563 (1962). Published in Bull. Alloy Phase Diagrams, 7(6), Dec 1986. Complete evaluation contains 1 figure, 1 table, and 6 references. 1