Beiträge zur systematischen Verwandtschaftslehre. 61. Bau und Verwendung eines Hochtemperaturkalorimeters mit geschlossenem Reaktionsraum

Enthalpy of formation of Au–Sn intermetallic phases. Part II

“…The results of Misra et al [6] for the gold-rich alloys are comparable with those of Jena [4] and the results of Biltz et al [7] for the ␦-AuSn compound are about 10% lower and for -AuSn 2 about 40% higher in comparison with the data of this study, Kleppa [3] and Misra et al [6].…”

“…Such a high difference between the data of Biltz et al [7] and this study, Kleppa [3] and Misra et al [6] for -AuSn 2 can be explained by too short the time and too low the reaction temperature of Sn with Au (363 K (90 • C)) because in such conditions 6. Results of experimental investigations of the equilibrium temperature phase transitions in the Au-Sn system [11][12][13][14][15][16][17][18] together with the phase equilibria calculated by Grolier and Schmid-Fetzer [9].…”

Thermodynamic modeling of the Au–Sb–Si ternary system

“…Experimental value [41] could be more reliable and thus was used in the present optimization, while the other experimental data [46][47][48][49] were neglected. According to these experimental values [41,[46][47][48][49], the temperature dependence of formation enthalpy of AuSb2 is assumed. In addition, the enthalpy contents (HT − H298) of AuSb2 and the alloy with 36 at.% Sb (eutectic composition) were measured by Anres et al [43] (298-963 K) and Yassin et al [50] (298-846 K) using calorimetry, respectively.…”

“…The enthalpies of formation of intermetallic compound AuSb2 were measured by Hayer and Castanet [41], Jena and Bever [46], Weibke and Schrag [47] at 298 K, Biltz [48] at 363 K and Kleppa [49] at 723 K. The reported experimental data [46,47] at 298 K differ much from the determined value later by Hayer and Castanet [41]. Experimental value [41] could be more reliable and thus was used in the present optimization, while the other experimental data [46][47][48][49] were neglected.…”

Thermodynamic modeling of the Au-In-Sb ternary system

“…Enthalpies of formation of AuSb 2 were measured by Hayer and Castanet, 5 Jena and Bever, 12 and Weibke and Schrag 13 at 298 K, 363 K by Biltz et al, 14 and 723 K by Kleppa. 15 Data reported by Jena and Bever 12 and Weibke and Schrag 13 at 298 K differ much from the newly obtained value by Hayer and Castanet 5 Data at 298 K given by Hayer and Castanet 5 may be more reliable so that is used in optimization whereas the other two sets of data 12,13 are neglected.…”