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|Title:||Modelling and Calculation of the LiF-NaF-MF3 (M=La,Ce,Pu) Phase Diagrams|
|Authors:||VAN DER MEER Juliette; KONINGS RUDY; HACK KLAUS; OONK H.a.j.|
|Citation:||CHEMISTRY OF MATERIALS vol. 18 p. 510-517|
|Publisher:||AMER CHEMICAL SOC|
|Type:||Articles in periodicals and books|
|Abstract:||The ternary systems LiF-NaF-LaF3 and LiF-NaF-CeF3 have been experimentally analyzed and thermodynamically assessed. Two models were used and compared to describe the excess Gibbs terms of the binary subsystems. One was a regular polynomial description of the excess terms, the other a quasi-chemical with the quadruplet approximation. In both cases, a fine agreement with the experimental data was achieved, after asymmetrical extrapolation from the binary to the ternary systems. The binary systems of the related actinide system LiF-NaF-PuF3 were assessed making use of experimental data known from the literature. The lanthanide systems served as a proxy for LiF-NaF-PuF3 to calculate the ternary phase diagram.|
|JRC Directorate:||Nuclear Safety and Security|
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