Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 405, Issue 2, Pages 186-198Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2010.08.017
Keywords
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Funding
- European Commission
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A thermodynamic assessment of the LiF-NaF-ThF4-UF4 system is presented in this study. The binary phase diagrams are optimized based on the known experimental data and the excess Gibbs energies of liquid and solid solutions are described using a modified quasi chemical model and polynomial formalism respectively. The higher order systems are extrapolated according to asymmetric Toop mathematical formalism. Based on the developed thermodynamic database the fuel composition of the molten salt fast reactor is optimized. In total three different fuel compositions are identified. Properties of these fuel compositions such as melting point, vapour pressure and the boiling temperature are derived from the obtained thermodynamic assessment and are presented in this study. (C) 2010 Elsevier B.V. All rights reserved.
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