Thermodynamic properties of uranium in gallium–aluminium based alloys

Thermodynamics of uranium in (Ga + Sn) eutectic alloy

“…Analysis of the IMC formed in Ga-Sn-U system showed that the solid consisted of a cubic phase isostructural with UGa 3 with the lattice parameter of a = 4.269 ± 0.004 Å. UGa 3 and USn 3 are isostructural (structure type of AuCu 3 , m Pm3 space group) and increasing lattice parameter of the phase formed in Ga-Sn-U system shows that U(Ga x Sn (1-x) ) 3 solid solution was likely formed. Assuming a linear relationship between the lattice parameter and atomic fraction of Ga in the Ga-Sn part of the IMC (such trend was previously noted for U-Ga-Al system [30]) the value of x in the solid solution can be estimated as 0.95 which is reasonable close to the atomic fraction of gallium (0.92) in the Ga-Sn solvent alloy. [27].…”

Thermodynamic properties of La–Ga–Al and U–Ga–Al alloys and the separation factor of U/La couple in the molten salt–liquid metal system

“…Addition of gallium to aluminium allows obtaining alloys with low melting points. Binary Ga-Al system has the eutectic melting at 298.8 K but it contains around 1. recently assessed [28]. However, for determining thermodynamic properties of La-Ga-Al and U-GaAl alloys and the separation factor of U/La couple in Ga-Al/3LiCl-2KCl based system, it is necessary to know the values of apparent standard potentials of lanthanum and uranium in the metallic alloys.…”

Application of Low Melting Metals for Separation of Uranium and Zirconium in a “Fused Chloride—Liquid Alloy” System

“…It is likely that aluminum reacted with uranium ions in the salt electrolyte reducing them to the metal. Compatibility of aluminum with uranium containing chloride melts remains a matter of certain controversy and requires further investigation [16,27,28]. To study the effect of the electrode material on reduction potential of uranium, cathodic polarization measurements were performed in LiCl-KCl-UCl3 melts.…”

“…It is likely that aluminum reacted with uranium ions in the salt electrolyte reducing them to the metal. Compatibility of aluminum with uranium containing chloride melts remains a matter of certain controversy and requires further investigation [16,27,28].…”