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2005
Equilibria
E 4000
27- 016
Investigation of the Phase Diagrams of the Systems Ln—Ni—Pb (Ln: Y, La, Ce,
Dy) and Crystal Structure of the Compounds Ln4Ni3Pb4 (Ln: La, Ce, Pr) and
Ln5NiPb3 (Ln: Y, La, Ce, Pr, Tb, Dy, Ho, Er, Tm, Lu). — The isothermal sections
of the systems Y—Ni—Pb (at 870 K), La—Ni—Pb (at 670 K), Ce—Ni—Pb (at 670
K) and Dy—Ni—Pb (at 870 K) are determined and 53 ternary compounds crystallizing
in six structure types are identified. The compounds Ln4Ni3Pb4 (Ln: La, Ce, Pr) are isostructural. La4Ni3Pb4 crystallizes in the space group R3 with Z = 3. The compounds
Ln5NiPb3 (Ln: Y, La, Ce, Pr, Tb, Dy, Ho, Er, Tm, Lu) crystallize in the hexagonal space
group P63/mcm (Hf5CuSn3-type structure). — (GULAY, L. D.; J. Alloys Compd. 392
(2005) 1-2, 165-172; Dep. Gen. Inorg. Chem., Volyn State Univ., Lutsk 43025,
Ukraine; Eng.) — W. Pewestorf
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