For the SnTe–PbTe–Bi₂Te₃ system, an analytical model of the temperature-composition dependencies of the crystallization surfaces of the SnTe, PbTe, Bi₂Te_3, compounds and the ternary PB(Sn)Bi₂Te₄, Pb(Sn)Bi₄Te₇, PB(Sn)Bi₆Te₁₀ phases formed on based on them was developed and visualized using the 3D analytical function of OriginLab software. The analytical multi-3D model of the phase diagram of the SnTe–PbTe–Bi₂Te₃ system allows drawing a three-dimensional image of the phases in equilibrium from different angles, obtaining 2D projections, and tabulating the coordinates of the phase diagram. These coordinates as form of matrices – 100x100 = 10.000 and 50x50 = 2500 tabular data create chance for selecting optimal composition and temperature values for the synthesis of alloys, and crystal growth

doi.org/10.32737/0005-2531-2023-2-62-68