2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 9: Molten Salts and Ionic Liquids, Energy Production
| Editors: | Kongoli F, Gaune-Escard M, Turna T, Mauntz M, Dodds H.L. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 390 pages |
| ISBN: | 978-1-987820-24-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Elaboration of 3D computer models of T-x-y diagrams and analysis of concentration fields for the systems LiF-PuF3-RbF and KF-PuF3-RbF
Vasily Lutsyk1; Anna Zelenaya1;1INSTITUTE OF PHYSICAL MATERIALS SCIENCE SB RAS, Ulan-Ude, Russian Federation;
Type of Paper: Regular
Id Paper: 75
Topic: 13
Abstract:
The boundaries of phase regions and 3D models of T-x-y diagrams of systems LiF-PuF3-RbF and EF-PuF3-RbF are simulated assembled using the schemes of mono- and invariant equilibria, which are compiled from the data of invariant reactions occurring in binary and ternary systems. The projection of all elements of phase diagrams into the Gibbs triangle divides it on two-, one- and zero-dimensional concentration fields. Models of T-x-y diagrams permit to consider all possible crystallization schemes in these systems and to define each microstructural element taking into account its origin. The characteristics of processes proceeding in the concentration fields can be analyzed with the help of diagrams of vertical mass balances, which show the increase or decrease of phases portions for each phase region. They also permit to compare the processes taking place in the different concentration fields and qualitatively show the cases in which some concentration fields differ by the schemes of phase reactions, but have the same microconstituents. Forecast of microconstituents for the concentration fields of varying dimension allows to plan and reduce the further experimental research.
This work has been performed under the program of fundamental research SB RAS (project 0336-2014-0003) and was partially supported by the Russian Foundation for Basic Research (projects 14-08-00453, 15-43-04304).
Keywords:
Materials; Moltensalt; Phase;References:
[1] O. Beneš and R.J.M. Konings: Actinide burner fuel: Potential compositions based on the thermodynamic evaluations of MF-PuF3 (M=Li, Na, K, Rb, Cs) and LaF3-PuF3 systems, Journal of Nuclear Materials, 377 (2008) 449–457.[2] O. Beneš, J.P.M. Meer and R.J.M. Konings: Modelling and calculation of the phase diagrams of the LiF-NaF-RbF-LaF3 systam, Calphad 31 (2007) 209–216.
[3] V.I. Lutsyk, V.P. Vorob'eva and A.E. Zelenaya: 3D Reference Book on the Oxide Systems Space Diagrams as a Tool for Data Mining, Solid State Phenomena, 230 (2015) 51-54.
[4] R.N. Savchuk, N.V. Faidyuk, A.A. Omel’chuk, V.I. Lutsyk and A.E. Zelenaya: Phase Equilibria in the NaF–LiF–LaF3 System, Russian Journal of Inorganic Chemistry, 59 (2014), 600-605.
[5] V.I. Lutsyk and V.P. Vorob’eva: Relation between the mass-centric coordinates in multicomponent salt systems, Z. Naturforsch A, 63a (2008), 513-518.
[6] V.I. Lutsyk, A.E. Zelenaya and V.V. Savinov: Phase Trajectories in CaO-Al2O3-SiO2 melts, Crystallography Reports, 57 (2012), 71-74.
[7] V. Lutsyk and A. Zelenaya: Crystallization Paths and Microstructures in Ternary Oxide Systems with Stoichiometric Compounds, Solid State Phenomena 200 (2013) 73-78.
[8] V. Lutsyk and A. Zelenaya: Crystallization paths in SiO2-Al2O3-CaO system as a genotype of silicate materials, Építőanyag - Journal of Silicate Based and Composite Materials, 65 (2013) 34-38.
[9] L.S. Palatnik and A.I. Landau, Phase Equilibria in Multicomponent Systems, 1964, Holt, Rinehard, Winston Inc., N.Y.
[10] V.I. Lutsyk: Crystallization path as a genotype of multicomponent material, Bulletin of the Buryat Scientific Center SB RAS, 1/5 (2012) 78-97. (In Russian)