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Article Dans Une Revue Journal of Phase Equilibria Année : 2003

Thermodynamic Assessment of the Fe-U Binary System

Résumé

The Fe-U system is one of the binaries of the U-Fe-Zr-O quaternary system that is important for a safe nuclear program. A new thermodynamic assessment of Fe-U is presented, taking into account some recent thermodynamic measurements: enthalpy of formation and of melting as well as heat capacities for both intermetallic compounds Fe2U and FeU6. The calculated phase diagram and thermodynamic data generally agree very well with the experimental values. The calculated temperature of the peritectic transformation [FeU6↔liquid + bcc-U] is equal to 1104 K, which is higher than in the previous assessments, but in agreement with Labroche’s value. However, the experimental melting enthalpy of FeU6 is not reproduced by the present set of thermodynamic parameters.
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Dates et versions

cea-04510009 , version 1 (18-03-2024)

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  • HAL Id : cea-04510009 , version 1

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Sylvie Chatain, Christine Guéneau, Delphine Labroche, Jacques Rogez, Olivier Dugne. Thermodynamic Assessment of the Fe-U Binary System. Journal of Phase Equilibria, 2003, 24 (2), pp.122-131. ⟨cea-04510009⟩

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