Thermodynamic assessment of the LiF-CeF3-ThF4 system: Prediction of PuF3 concentration in a molten salt reactor fuel
A thermodynamic description of the LiF-CeF3-ThF4 system is made in this study using a two-sublattice model for the description of the solid solution and a quasi-chemical model based on quadruplet approximation for the liquid phase. New calorimetric experimental data of the binary LiF-CeF3, CeF3-ThF4 and ternary LiF-CeF3-ThF4 systems have been obtained in this work justifying the calculated phase diagrams. Using the obtained thermodynamic assessment the concentration of PuF3 in the LiF-ThF4 melt was estimated based on the similarities with CeF3 and the melting behaviour of the initial molten salt fast reactor fuel was discussed.
BENES Ondrej;
KONINGS Rudy;
2013-05-14
ELSEVIER SCIENCE BV
JRC73837
0022-3115,
http://www.sciencedirect.com/science/article/pii/S0022311512006629,
https://publications.jrc.ec.europa.eu/repository/handle/JRC73837,
10.1016/j.jnucmat.2012.12.005,
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