Enthalpy of formation of N-U (nitrogen-uranium) system
This chapter provides the enthalpy of formation of N-U (nitrogen-uranium) system.
Katsura et al. [98Kat] have investigated thoroughly the formation of α-U2N3+x starting from metallic U with a mixture of N2 and H2. The reaction takes place even at 570 K.
In a thermodynamic study Nakagawa et al. [98Nak] have determined N2 pressure-composition isotherms at temperatures between 670 K and 1170 K for the single phase α-U2N3+x. From results obtained the authors calculated the partial molar free energy, enthalpy and entropy as a function of N2 content.
integral enthalpy of formation of a solid alloy