Enthalpy increment and heat capacity of Pb3Bi

There is no available experimental data on enthalpy increment and heat capacity of Pb3Bi intermetallic compound. It is an important data required for optimization calculations of phase diagram and thermodynamic parameters of Pb-Bi system. Further, enthalpy increment of Pb0.71Bi0.29 composition in solid, solid + liquid and liquid regions was determined. The data was used for calculating enthalpy of peritectic decomposition of the compound and enthalpy of mixing of the liquid in the temperature region near liquidus temperature.