Thermodynamics of liquid alloys

An adiabatic calorimeter was used to measure the dependence on temperature and composition of the heat capacity Cpl(x, T) of liquid magnesium-rich La-Mg-Ni, lanthanum-rich Al-La-Ni alloys and of Al7.5Cu17.5Ni10Zr65. The Cpl(x, T) of these alloys exhibit large values near to the liquidus temperature. Cpl(x, T) values of the glass-forming alloys exceed their values of the undercooled liquid state above the glass transition temperature. The Cpl dependence on temperature reveals therefore a maximum in the undercooled liquid state. This specific behaviour of liquid alloys is described using an association model.