A Knudsen cell-mass spectrometer facility to investigate oxidation and vaporisation processes in nuclear fuel - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Nuclear Materials Année : 2005

A Knudsen cell-mass spectrometer facility to investigate oxidation and vaporisation processes in nuclear fuel

J.-P. Hiernaut
  • Fonction : Auteur
J.-Y. Colle
  • Fonction : Auteur
J. Jonnet
  • Fonction : Auteur
C. Ronchi
  • Fonction : Auteur

Résumé

Vaporisation processes in uranium oxide fuel were investigated under controlled oxidation conditions. A Knudsen cell with a mass spectrometer was adapted to feed an adjustable oxygen flux up to temperatures of 1900 K producing an oxygen pressure in the cell ranging up to 1000 Pa. Experiments were carried out on fresh and irradiated fuels, both pre-oxidised to U3O8 or oxidised online in the Knudsen cell, to measure effects associated with fuel sublimation in the form of different uranium-bearing oxides. Mass spectrometry, electromotive force measurements and thermo-gravimetric analysis were used to determine the vapour equilibrium conditions at fixed free oxygen potentials.

Dates et versions

hal-02462535 , version 1 (31-01-2020)

Identifiants

Citer

J.-P. Hiernaut, J.-Y. Colle, R. Pflieger-Cuvellier, J. Jonnet, J. Somers, et al.. A Knudsen cell-mass spectrometer facility to investigate oxidation and vaporisation processes in nuclear fuel. Journal of Nuclear Materials, 2005, 344 (1-3), pp.246-253. ⟨10.1016/j.jnucmat.2005.04.050⟩. ⟨hal-02462535⟩
37 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More