Thermodynamic studies on Al–U–Zr alloy

Abstract The ternary alloys, Al0.9749U0.0216Zr0.0035, Al0.9607U0.0316Zr0.0077, Al0.940U0.0472Zr0.0088 and Al0.8933U0.0911Zr0.0156, were prepared by induction melting and casting. The enthalpy increment measurements were carried out using Calvet calorimetry. The enthalpy increment values as a function of temperature are least squares fitted to polynomial expressions using the constraint that H0(T)−H0(298.15 K)=0 at 298.15 K. The specific heat capacity expressions for these alloys have been derived and it is observed that C0p(T) of U–Al–Zr alloy decreases with increasing U content.