Laves phase compounds diagram

With the exception of Ce systems, lanthanide compounds and alloys made with Yb most frequently exhibit Kondo anomalies. Two of the most thoroughly studied Yb systems are YbA and YbAls. The phase diagram for the Yb-Al system has been reported by Palenzona (1972). YbA crystallizes in the cubic MgCu2 Laves phase while YbAL forms in the cubic CujAu structure. landelli and Palenzona (1972) measured the lattice constants of both compounds from 80-800 K. 

Laves phases of the MgZnj (Cl4)- and MgCu2 (C15)-types are found in many binary RTj compounds and in certain cases their homogeneity ranges extend far into the ternary phase diagram. These results are beyond the scope of this paper. Only truly ternary phases should be mentioned here. Two kinds have to be distinguished ... 

---