Thermodynamic analysis of light-actinide elements

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3 Scopus citations


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 languageEnglish
Pages (from-to)36-39
Number of pages4
JournalJournal of Nuclear Materials
Issue number1-3
StatePublished - 1 Sep 2005
EventProceedings of the 11th International Symposium on Thermodynamics of Nuclear Materials -
Duration: 6 Sep 20049 Sep 2004

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • General Materials Science
  • Nuclear Energy and Engineering


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