Фазовая диаграмма системы Tb-Tl

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Tb-Tl

Tb-Tl (Terbium-Thallium) S. Delfino, A. Saccone, A. Palenzona, and R. Ferro The assessed phase diagram for the Tb-Tl system is based on the work of [ 88Sac1]. Metallography results suggest a homogeneity range of about 1 at.% (4 to 5 at.% Tl for TbTl) for the intermediate phases, except for TbTl3 . Tb2Tl and Tb3Tl5 form peritectically at 1040 and 1000 C, respectively. Tb5Tl3, TbTl, and TbTl3 melt congruently at 1290, 1300, and 940 C, respectively. The formation mechanism of Tb5Tl3+x, whose powder photograph showed clear similarities with that of the Ba5Pb3-type structure, has not been determined. Thermodynamics and magnetic properties of Tb-Tl alloys as well as the general properties of RE-Tl alloys were discussed by [88Sac2]. 88Sac1: A. Saccone, S. Delfino, G. Cacciamani, and R. Ferro, J. Less-Common Met., 136, 249 (1988). 88Sac2: A. Saccone, S. Delfino, and R. Ferro, J. Less-Common Met., 143, 1 ( 1988). Submitted to the APD Program. Complete evaluation contains 1 figure, 1 table, and 4 references. 1

 




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