Vaporization behaviour of a PuF3-containing fuel mixture for the Molten Salt Fast Reactor

Journal article (2019)

Authors

A. Tosolin Politecnico di Milano, European Commission Joint Research Centre
J. Y. Colle European Commission Joint Research Centre
S. Mastromarino RST/Reactor Physics and Nuclear Materials - AS , European Commission Joint Research Centre
P. Souček European Commission Joint Research Centre
L Luzzi Politecnico di Milano
R. Konings RST/Reactor Physics and Nuclear Materials - AS , European Commission Joint Research Centre
O. Beneš European Commission Joint Research Centre
Research Group
RST/Reactor Physics and Nuclear Materials (AS) (TU Delft)
Copyright: © 2019 A. Tosolin, J. Y. Colle, S. Mastromarino, P. Souček, L. Luzzi, R. Konings, O. Beneš
DOI: https://doi.org/10.1016/j.jnucmat.2019.151780
More Info
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Published Date

2019

Language

English

Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Reactor Physics and Nuclear Materials

Abstract

The mixture LiF-ThF4-UF4-PuF3 (77.5–6.6-12.3–3.6 mol%), a fuel option for the Molten Salt Fast Reactor (MSFR), has been measured by differential scanning calorimetry (DSC) for determination of phase transitions, and by Knudsen effusion mass spectrometry (KEMS) for measurement of partial vapour pressures. The boiling point of the mixture was determined by extrapolation of total vapour pressure to 1 bar. Thermodynamic calculations were performed and compared with the experimental results. Novel experimental data on pure plutonium trifluoride are presented: melting point, vaporization enthalpy, vapour pressure and ionization energies by electron impact.