Thermodynamic study of the U–Si system

Critical evaluation and thermodynamic optimization of the (U + Bi), (U + Si) and (U + Sn) binary systems

“…The temperature of the eutectic reaction liquid ? (U 3 Si 2 + USi) was reported as (1547 ± 5)°C by Berche et al [14]. This is in reasonable agreement with the value of (1540 ± 10)°C found by Vaugoyeau et al [34].…”

“…The solid solubilities of Si in U terminal phases bcc (U), Tetragonal (U) and Orthorhombic (U) were reviewed by Katz and Rabinowitch [35] and Shunk [36]. Dwight [37] [14]. The temperature of the eutectic reaction liquid ?…”

“…Fortunately, thermodynamic modelling of multi-component systems by the calculation of phase diagrams (CALPHAD approach) has been shown to be a very efficient way to investigate phase equilibria and thermodynamic properties systematically [11,12]. The (U + Bi) and (U + Si) binary systems have been assessed and calculated respectively by Wang et al [13] and Berche et al [14]. However, further improvements are necessary for the reproduction of phase diagram and thermodynamic properties.…”

Thermodynamic study of the uranium–vanadium system

“…Such material for the crucibles was successfully tested in previous experimental studies to contain liquid uranium in [3]. The Y 2 O 3Àx crucibles have been machined by Friactec DPL from a dense rod (porosity <2%).…”

“…The FUELBASE thermodynamic database is developed since 2005 with the aim of providing a flexible tool to perform thermodynamic calculations on advanced Generation IV fuel materials using the Calphad method [2]. To improve this thermodynamic base, both assessments and experimental studies [3] are performed. The thermodynamic description of a quaternary system is based on the assessment of the ternary and binary sub-systems.…”