Étude calorimétrique des systèmes binaires de tellure et de métaux nobles

Thermodynamic reassessment of the Au–Te system

“…So the enthalpies at 1103 K and 1200 K [3] and 1281 K [17] were not used in the optimization. The enthalpy of mixing of liquid Au-Te alloys measured by Ishida et al [16] for 60-100 at.% Te is in very good agreement with the results of Castanet et al [14]. Bergman and Castanet [3] deduced an enthalpy versus composition expression from their data obtained at 737 K and the experiment results of [14,16].…”

“…The enthalpy of mixing of liquid Au-Te alloys was determined by calorimetric measurements at 737 K [14], 751, 819, [16], and at 1281 K [17]. The agreement of the data between [3] and [17] is poor and the data at 1103 K is too negative.…”

“…Bergman and Castanet [3] deduced an enthalpy versus composition expression from their data obtained at 737 K and the experiment results of [14,16]. Because of the qualitative agreements with the phase diagram and the preferable experimental method, the results of Castanet et al [14], Bergman and Castanet [3] (except that at 1103 K and 1200 K), and Yassin and Castanet [15] were accepted for thermodynamic assessment.…”

“…1. The Au-Te phase diagram calculated from the present thermodynamic description in comparison with experimental measurements [10][11][12][13][14][15] and [18][19][20]. [3] in the 0.48-0.67 at.% Te.…”

p-T Phase Diagram of the Cu-Te System

“…In view of the complex composition of the vapor phase, the total pressure of saturated vapor over the [19,20], and (8) [3]; present results derived as described in [21] from (5) the heats of formation of melts, CuTe, and Cu 2 Te [3,7,22], (6) emf data [23], and (7) calorimetry data [24]. The lines of two-and three-phase equilibria are discussed in text; the normals at points T e , I, H, G, A m , M, A e , C m , and T m represent the lines of three-phase equilibria involving no vapor phase.…”