Thermodynamic modeling of the C-Pu-U system

被引:2
作者
Fischer, Evelyne [1 ]
机构
[1] Grenoble INP, F-38400 St Martin Dheres, France
来源
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2009年 / 33卷 / 03期
关键词
C-Pu-U; Thermodynamics; Modeling; CALPHAD;
D O I
10.1016/j.calphad.2009.01.004
中图分类号
O414.1 [热力学];
学科分类号
摘要
The ternary C-Pu-U system is thermodynamically assessed to pursue the development of a thermodynamic database for future nuclear fuels. The substitution model was used for the liquid phase, and a two-sublattice model for the PuC-UC monocarbide, PuC(2)-UC(2) dicarbide and Pu(2)C(3)-U(2)C(3) sesquicarbide phases. Ternary interaction parameters were adjusted on the experimental information for the phase relationships. Isoplethal and isothermal ternary sections, as well as some liquidus temperatures are calculated and compared with the experimental data. The overall agreement is discussed, and shows that experimental uncertainties still remain. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:487 / 494
页数:8
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