Abstract
The thermophysical properties of the alpha phases of the light actinide elements Th, U, Np and Pu were analysed. For each of the analysed elements, the Gibbs free-energy was modelled by an explicit function of temperature T and pressure P over the whole relevant T-P range, in a manner compatible with the CALPHAD (Calculation of Alloy Phase Diagrams) method. Several adjustable model-parameters were fitted to available experimental results. The model is based on a new semi-empirical equation of state, which interpolates with Thomas-Fermi type models for the volume and with the Dulong-Petit value for the heat capacity, at extreme pressures.
Original language | English |
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Pages (from-to) | 36-39 |
Number of pages | 4 |
Journal | Journal of Nuclear Materials |
Volume | 344 |
Issue number | 1-3 |
DOIs | |
State | Published - 1 Sep 2005 |
Event | Proceedings of the 11th International Symposium on Thermodynamics of Nuclear Materials - Duration: 6 Sep 2004 → 9 Sep 2004 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Materials Science (all)
- Nuclear Energy and Engineering