Фазовая диаграмма системы La-W

К оглавлению: Другие диаграммы (Others phase diargams)


La-W (Lanthanum-Tungsten) S. Pandian, S.V. Nagender Naidu, and P. Rama Rao Available reports concerning the solubility of W in liquid La are contradictory. For the temperature range 1496 to 2266 C, [66Den] reported an increase in solubility with temperature, whereas in the temperature range 918 ( melting point of La) to 1200 C [66Gau] reported a decrease in solubility with an increase in temperature. Because the solubility values reported by [66Gau] are found to be considerably lower than those reported by [66Den], the solubility data reported by [66Den] are preferred. The data of [66Den] were used to construct the partial La-W phase diagram. 66Den: D.H. Dennison, M.J. Tschetter, and K.A. Gschneidner, Jr., J. Less- Common Met., 11, 423-435 (1966). 66Gau: F. Gaume Mahn and C. Ait Yaha, Compt. Rend Acad. Sci., Paris, 262C, 1528-1529 (1966) in French. Published in J. Alloy Phase Diagrams, 4(2), May 1988. Complete evaluation contains 1 figure, 3 tables, and 3 references. 1