Фазовая диаграмма системы Cr-Pu

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Cr-Pu (Chromium-Plutonium) M. Venkatraman, J.P. Neumann, and D.E. Peterson The assessed phase diagram for the Cr-Pu system has been constructed using thermodynamic modeling. It is based primarily on the work of [58Boc], [61Ell], [68Bow], and [68Ell] for the Pu-rich region of the system. Reasonable agreement was obtained between the calculated boundaries and the experimental data. Cr and Pu form a simple eutectic system, with very small terminal solid solubilities and no intermediate phases. Addition of Cr does not significantly change the allotropic transformation temperatures of pure Pu, indicating a very small solid solubility of Cr in (Pu). The maximum solubility of Cr in ( dPu) is about 1 at.%. The nature of the invariant three-phase equilibria involving solid Cr and the Pu allotropes is unknown. 58Boc: A.A. Bochvar, S.T. Konobeevsky, V.I. Kutaitsev, T.S. Menshikova, and N. T. Chebotarev, Prof. 2nd U.N. Int. Conf. on Peaceful Uses of Atomic Energy, Geneva, 1958, Vol. 6, United Nations, Geneva, 184-193 (1958). 61Ell: R.O. Elliott and A.C. Larson, in The Metal Plutonium, A.S. Coffinberry and W.N. Miner, Ed., University of Chicago Press, Chicago, 265-280 (1961). 68Bow: D.F. Bowersox and J.A. Leary, J. Nucl. Mater., 27, 181-186 (1968). 68Ell: F.H. Ellinger, W.N. Miner, D.R. O'Boyle, and F.W. Schonfeld, Los Alamos Sci. Lab., Rep. LA-3870, 31-32 (1968). Published in Bull. Alloy Phase Diagrams, 6(5), Oct 1985. Complete evaluation contains 2 figures, 1 table, and 8 references. 1