About the enthalpy of formation of the UZr2 compound

The U-Zr phase diagram has been the subject of many recent studies, particularly for development metallic fuels future fast reactors. so-called δ-UZr2 is part this renewed interest as it likely to be formed during irradiation U-Zr10wt% fuel. Although several structural there a single experimental determination its enthalpy formation by dissolution calorimetry. Most Calphad and DFT models rely on value support their validation. In paper, we propose reinterpretation measurement which tends show that original interpretation authors was probably wrong. Our leads new endothermic estimate standard discussed in relation other data system. need heat capacity measurements highlighted. present work does not invalidate most CALPHAD descriptions.