Title: Vaporization behaviour of the Molten Salt Fast Reactor fuel: The LiF-ThF4-UF4 system
Authors: TOSOLIN ALBERTOBENES ONDREJCOLLE JEAN-YVESSOUCEK PAVELLUZZI LELIOKONINGS RUDY
Citation: JOURNAL OF NUCLEAR MATERIALS vol. 508 p. 319-328
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2018
JRC N°: JRC111054
ISSN: 0022-3115
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC111054
DOI: 10.1016/j.jnucmat.2018.05.049
Type: Articles in periodicals and books
Abstract: A selected composition of the initial fuel of the Molten Salt Fast Reactor (MSFR) is assessed by differential scanning calorimetry (DSC) for melting point determination and by Knudsen effusion mass spectrometry (KEMS) for vaporization behaviour. Partial vapour pressures and thermodynamic activities of the MSFR fuel mixture are discussed indicating departures from ideal behaviour, and further interpreted by phase equilibria calculations. The boiling point of the mixture is obtained extrapolating vapour pressure experimental results. New results on the vaporization behaviour of pure uranium tetrafluoride are presented, together with the ionization potentials of UF4 by electron impact.
JRC Directorate:Nuclear Safety and Security

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