The isothermal section of the phase diagram of Ce-Mg-Zn ternary system at 470 K

The isothermal section of the phase diagram of Ce-Mg-Zn ternary system at 470 K in a full concentration range was built, and a formation of seven ternary compounds was observed. For five ternary compounds: τ₁ - Ce₃(Zn_0.863Mg_0.137)₁₁ (Immm space group, La₃Al₁₁ structure type), τ₃ - CeMg_1+xZn_2−x (Fm-3m, MnCu₂Al), τ₄ - CeMg_2.5Zn_4.5 (P6/mmm, TbCu₇), τ₅ - Ce₃Mg₁₃Zn₃₀ (P6₃/mmc, Sm₃Mg₁₃Zn₃₀) and τ₇ - Ce₂₀Mg₁₉Zn₈₁ (F-43m, own structure type) the crystal structures were investigated. The crystal structures of CeMg_1−xZn_x continuous solid solution and of CeMg_12-xZn_x and CeMg_3-xZn_x limited solid solutions were studied more precisely by the X-ray single crystal and powder diffraction, and also using the WDS and EPMA techniques. The Ce-Mg-Zn ternary phases are structurally related to the binary phases of RE-Mg and RE-Zn (RE - rare-earth metals) systems.