Molar heat capacity of some Au+Pb alloys

The molar heat capacities of some Au-Pb alloys were determined at constant pressure in the temperature range 423 K-773 K by using differential scanning calorimetry ; the studied alloys are the three intermetallic compounds Au2Pb, AuPb2 and AuPb3, the eutectic alloy and the Au0.5Pb0.5, Au0.4Pb0.6 et Au0.3Pb0.7 alloys. These values have been smoothed and expressed as function of T-T0.From Cp° results obtained in solid and liquid state, the excess molar heat capacities were deduced