Thermodynamic behavior of CrF2 corrosion product in the molten LiF-ThF4 salt system
T. Dumaire (European Commission Joint Research Centre, TU Delft - RST/Reactor Physics and Nuclear Materials)
O. Walter (European Commission Joint Research Centre)
Ondřej Beneš (European Commission Joint Research Centre)
Jean Christophe Griveau (European Commission Joint Research Centre)
Eric Colineau (European Commission Joint Research Centre)
R. Konings (TU Delft - RST/Reactor Physics and Nuclear Materials, European Commission Joint Research Centre)
Anna L. Smith (TU Delft - RST/Reactor Physics and Nuclear Materials)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
This work examines the thermochemistry of the chromium difluoride CrF2 corrosion product in the molten [Formula presented] fuel salt system. Through a combination of experimental investigations and thermodynamic modeling assessment, the study elucidates the thermodynamic properties, phase diagram equilibria, and overall thermodynamic behavior of CrF2 corrosion product, following dissolution from a structural material to the molten salt fuel environment. In this work, two different synthesis methods were developed for pure CrF2, further allowing to experimentally measure the phase equilibria in the [Formula presented], [Formula presented], and [Formula presented] systems. Then, thermodynamic models were developed using the CALPHAD method based on the quasichemical model in the quadruplet approximation.
help_outline