A miscibility gap in LiF-BeF2 and LiF-BeF2-ThF4

LiF-BeF2 and LiF-BeF2-ThF4 are key systems for Molten Salt Reactor fuel. The liquid phase of these systems has been assessed using Redlich-Kister polynomials. The result shows a miscibility gap on the BeF2-rich side. This has never been proven experimentally. Nevertheless, evidence for a two liquids...

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Bibliographic Details
Published in:Journal of nuclear materials 2005-09, Vol.344 (1-3), p.94-99
Main Authors: VAN DER MEER, J. P. M, KONINGS, R. J. M, JACOBS, M. H. G, OONK, H. A. J
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
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Summary:LiF-BeF2 and LiF-BeF2-ThF4 are key systems for Molten Salt Reactor fuel. The liquid phase of these systems has been assessed using Redlich-Kister polynomials. The result shows a miscibility gap on the BeF2-rich side. This has never been proven experimentally. Nevertheless, evidence for a two liquids region is given by the fact that such a region exists in the analogous MgO-SiO2 system. Also the ternary system LiF-BeF2-ZrF4 contains such a miscibility gap in the BeF2 corner.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2005.04.023