Thermodynamic analysis of light-actinide elements

Eli Brosh; Guy Makov; Roni Z. Shneck

doi:10.1016/j.jnucmat.2005.04.012

Thermodynamic analysis of light-actinide elements

Eli Brosh, Guy Makov, Roni Z. Shneck

Department of Materials Engineering

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

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
Pages (from-to)	36-39
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	344
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2005.04.012
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
General Materials Science
Nuclear Energy and Engineering

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10.1016/j.jnucmat.2005.04.012

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title = "Thermodynamic analysis of light-actinide elements",

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.",

author = "Eli Brosh and Guy Makov and Shneck, {Roni Z.}",

note = "Funding Information: Russian Foundation for Basic Research, Shock-Wave database. Available from: < http://teos.ficp.ac.rus/rusbank >.; Proceedings of the 11th International Symposium on Thermodynamics of Nuclear Materials ; Conference date: 06-09-2004 Through 09-09-2004",

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TY - JOUR

T1 - Thermodynamic analysis of light-actinide elements

AU - Brosh, Eli

AU - Makov, Guy

AU - Shneck, Roni Z.

N1 - Funding Information: Russian Foundation for Basic Research, Shock-Wave database. Available from: < http://teos.ficp.ac.rus/rusbank >.

PY - 2005/9/1

Y1 - 2005/9/1

N2 - 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.

AB - 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.

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U2 - 10.1016/j.jnucmat.2005.04.012

DO - 10.1016/j.jnucmat.2005.04.012

M3 - Conference article

AN - SCOPUS:23744449887

SN - 0022-3115

VL - 344

SP - 36

EP - 39

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1-3

T2 - Proceedings of the 11th International Symposium on Thermodynamics of Nuclear Materials

Y2 - 6 September 2004 through 9 September 2004

ER -

Thermodynamic analysis of light-actinide elements

Abstract

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