✍ Scribed by V.N. Guskov; J.H. Greenberg; A.S. Alikhanyan; A.M. Natarovsky; T. Feltgen; M. Fiederle; K.W. Benz
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P-T-X data are the thermodynamic basis for modeling the crystal growth of materials with controlled stoichiometry. In this paper results of the first direct experimental measurement of the total vapor pressure are reported for three-phase equilibria SLV (solid-liquid-vapor) and VLS (vaporliquid-solid) in Zn-Te, and the P-T projection of the P-T-X phase diagram is constructed. Geometrical analysis of the phase equilibrium showed that three congruent processes are observed in the Zn-Te system: congruent melting (S = L), sublimation (S = V), and vaporization (L = V). All three congruent curves are tangent to SLV. Consequently, all three congruent points are on the Teside of the maximum melting point of ZnTe. The vapor pressure scanning method was applied to determine the maximum non-stoichiometry as a function of the temperature. The solidus volume of ZnTe was shown to be on the Te-side of the stoichiometric plane.
📜 SIMILAR VOLUMES
The solid-liquid-vapour phase diagram of the Mn-As system has been determined in the range of 40-100 atyo As. The melting point of equiatomic MnAs was found to be 936 f 1 "C a t a n arsenic pressure of 4 lod3 atm. Das Phasendiagramm fest-fliissig-Dampf des Systems Mn-As wurde im Bereich von 40 -100