Stannides phase diagrams

Only YbAgPb and La4Ni3Pb4 show peculiar structure types, which have first been observed for a plumbide. All other plumbides exhibit relatively simple structure types, which have been observed also for silicides, germanides, stannides, gallides, or indides. We expect that lead characteristic structures will form in the lead rich parts of the ternary systems, similar to the gallium and indium based phase diagrams. 

Phase diagrams of the binary R-Sn systems, the crystal structure and thermodynamic properties of binary stannides have been summarized by Bulanova and Sydorko (1994). 

The ternary systems R-M-Sn have not been studied completely. The majority of systems has been investigated by Skolozdra and co-authors (Skolozdra 1993). In other studies only individual alloys were investigated with the aim of finding new compounds. The phase diagrams are described below. One section of the review of Gladyshevsky et al. (1990) has been dedicated to the description of the ternary rare-earth-tin systems and the ternary stannides. 

The isothermal section of the phase diagram of the Sc-Cu-Sn system at 673 K was constructed (Kotur and Derkach 1994). The system is characterized by the existence of three ternary stannides ScCu4Sn, ScCuSn and Sc6CuSn2. The crystal structure was studied for ScCu4Sn and ScCuSn. The homogeneity range of the ternary compounds is small. 

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