Фазовая диаграмма системы Nd-Pr

К оглавлению: Другие диаграммы (Others phase diargams)


Nd-Pr (Neodymium-Praseodymium) K.A. Gschneidner, Jr. and F.W. Calderwood The assessed phase diagram for the Nd-Pr system is based on a review of the work of [63Mar] and [64Lun]. It is characterized by complete solid solubility for both the dcph and the bcc structures and a definite, very narrow two-phase region (liquid plus solid) between the liquidus and solidus lines. Because Nd and Pr are both trivalent, have adjacent atomic numbers, and exhibit a continuous series of solid solutions, the liquidus and solidus lines in the present diagram were drawn as a single straight line connecting the two melting points of Nd and Pr. For the same reason, the upper and lower solvus curves are also drawn as a single straight line. 63Mar: I.A. Markova, V.F. Terekhova, and E.M. Savitskii, Zh. Neorg. Khim, 8, 1998 (1963) in Russian; TR: Russ. J. Inorg. Chem., 8, 1041 (1963). 64Lun: C.E. Lundin, J.F. Nachman, and A.S. Yamamoto, in Rare Earth Research II, K.S. Vorres, Ed., Gordon and Breach Science Publishers, Inc., New York, 315 ( 1964). Published in Bull. Alloy Phase Diagrams, 3(2), Sep 1982. Complete evaluation contains 4 figures and 8 references. 1