Chapter 88 Phase equilibria and crystal chemistry in ternary rare earth systems with metallic elements

Abstract

This chapter presents a survey of the results of phase equilibria and crystal structures found in ternary rare-earth systems. Only metallic elements—such as Al, Ga, In, Tl, Ge, Sn, and Pb—and a transition metal are taken into account because experimental investigations were prevailed for them. A few known ternary systems with actinides are also described in the chapter. The order of phase equilibria description is determined by the Mendeleev's periodic system; only in one case (ternary systems with two transition metals), an alphabetical order is used. Phase equilibria are investigated partially or for the full range of concentrations in 89 ternary R–M–Al systems. A total of 247 new ternary compounds are formed in these systems, of these 168 crystal structures have been determined. The results (the phase diagrams, compositions, and crystallographic data of ternary compounds) are presented. 74 ternary systems have been investigated without studying the phase diagram.