Thermodynamic investigation of the (LiF + NaF + CaF2 + LaF3) system

被引:24
作者
Beilmann, M. [1 ,2 ]
Benes, O. [1 ]
Konings, R. J. M. [1 ]
Fanghaenel, Th [1 ,2 ]
机构
[1] European Commiss, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany
[2] Univ Heidelberg, Phys Chem Inst, D-69120 Heidelberg, Germany
关键词
Molten salts; Phase diagram; Differential scanning calorimetry; Thermodynamics; QUASI-CHEMICAL MODEL; PHASE RELATIONS; SYSTEMS; FLUORIDE; MIXTURES; DIAGRAMS; CAF2-LIF; NAF; LIF; CS;
D O I
10.1016/j.jct.2011.05.002
中图分类号
O414.1 [热力学];
学科分类号
070201 [理论物理];
摘要
In this work a thermodynamic assessment of the (LiF + NaF + CaF2 + LaF3) system is reported. For the thermodynamic modeling of the liquid phase, the classical polynomial model, and the modified quasichemical model were used in parallel and compared. The extrapolation to higher order systems was done according to the Toop mathematical formalism. Furthermore, differential-scanning calorimetry data of the ternary (LiF + CaF2 + LaF3), (NaF + CaF2 + LaF3), and the quaternary (LiF + NaF + CaF2 + LaF3) mixtures are presented. Good agreement between the experimental data and the thermodynamic assessment was obtained. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1515 / 1524
页数:10
相关论文
共 34 条
[1]
Calorimetric and thermal analysis investigations of the MF-LaF3 mixtures (M equals alkali metal) [J].
Abdoun, F ;
GauneEscard, M ;
Hatem, G .
JOURNAL OF PHASE EQUILIBRIA, 1997, 18 (01) :6-20
[2]
AGULYANSKII AI, 1982, RUSS J INORG CHEM, V27, P579
[3]
[Anonymous], 1998, J PHYS CHEM REF DATA
[4]
Bale C.W., FACTSAGE SOFTWARE V
[5]
Actinide burner fuel:: Potential compositions based on the thermodynamic evaluation of MF-PuF3 (M = Li, Na, K, Rb, Cs) and LaF3-PuF3 systems [J].
Benes, O. ;
Konings, R. J. M. .
JOURNAL OF NUCLEAR MATERIALS, 2008, 377 (03) :449-457
[6]
Thermodynamic evaluation of the MF-LaF3 (M = Li, Na, K, Rb, Cs) systems [J].
Benes, O. ;
Konings, R. J. M. .
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2008, 32 (01) :121-128
[7]
Modelling and calculation of the phase diagrams of the LiF-NaF-RbF-LaF3 system [J].
Benes, O. ;
van der Meer, J. P. M. ;
Konings, R. J. M. .
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2007, 31 (02) :209-216
[8]
A DSC study of the NaNO3-KNO3 system using an innovative encapsulation technique [J].
Benes, O. ;
Konings, R. J. M. ;
Wurzer, S. ;
Sierig, M. ;
Dockendorf, A. .
THERMOCHIMICA ACTA, 2010, 509 (1-2) :62-66
[9]
Bukhalova G. A. B. E. P., 1965, RUSS J INORG CHEM, V10, P1026
[10]
BUKHALOVA GA, 1949, DOKL AKAD NAUK SSSR+, V66, P67