Фазовая диаграмма системы Lu-Yb

К оглавлению: Другие диаграммы (Others phase diargams)


Lu-Yb (Lutetium-Ytterbium) K.A. Gschneidner, Jr. and F.W. Calderwood The assessed phase diagram for the Lu-Yb system is based on the work of [74Bea] , with slight adjustments made to reflect the currently accepted values. Extrapolation of the liquidus data to the peritectic temperature indicates a solubility of about 0.2 at.% Lu in Yb at 820 C. The decrease in the lattice parameter of a 10 at.% Lu-Yb alloy heat treated at 800 C and quenched indicated a solubility of 0.3 at.% Lu in (gYb). The solubility of Lu in (bYb) appears to decrease to less than 0.1 at.% at 500 C, because a sample equilibrated at 500 C and quenched to room temperature had the same lattice parameter as pure Yb. The solubility of Yb in (Lu) at 820 C (6.5 at.% Yb) was obtained by extrapolating the solubility curve to the peritectic temperature (820 C). The solubility of Yb in (Lu) at the peritectoid temperature was estimated to be 6 at.%. 74Bea: B.J. Beaudry and F.H. Spedding, Metall. Trans., 5, 1631 (1974). Published in Bull. Alloy Phase Diagrams, 4(3), Nov 1983. Complete evaluation contains 1 figure and 2 references. 1