Фазовая диаграмма системы Tb-W

К оглавлению: Другие диаграммы (Others phase diargams)


Tb-W (Terbium-Tungsten) S. Pandian, S.V. Nagender Naidu, and P. Rama Rao Little information is available on the RE-W binary systems. The data of [66Den] were used to construct a partial assessed phase diagram for the Tb-W system. In general, RE elements behave similarly. Reports are available for the Sc-W, Y-W, and Ce-W systems indicating a eutectic reaction in each; the other RE-W systems may also be expected to have a eutectic, probably of the type L = (RE) + (W). The solubility data of W in liquid Tb reported by [66Den] are 0.0029 at.% W at 1357 C, 0.110 at.% W at 1630 C, 0.181 at.% W at 1768 C, 0.269 at.% W at 1862 C, 0.372 at.% W at 1968 C, and 0.406 at.% W at 2020 C. The eutectic temperature and composition in the assessed diagram are ~1356 C and 0.029 at.% W, respectively. 66Den: D.H. Dennison, M.J. Tschetter, and K.A. Gschneidner, Jr., J. Less- Common Met., 11, 423-435 (1966). Published in J. Alloy Phase Diagrams, 4(2), May 1988. Complete evaluation contains 1 figure, 3 tables, and 21 references. 1