Abstract
The oxygen potentials of (Pu0.3U0.7)O2-x in the near stoichiometric region were measured by a thermogravimetric technique which was used to establish the equilibrium between the oxide phases and H 2/H2O system gas. The experimental results of (Pu 0.3U0.7)O2-x show a consistent variation in PO2 with O/M and temperature and are in agreement with other works. The relationship between the partial oxygen pressure and x in MO2-x was evaluated by the lattice defect theory. The relationship in the hypo-stoichiometric region was x∝PO2-1/2 near the stoichiometric composition, and became x∝PO2-1/3 with a decrease in O/M.
Original language | English |
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Pages (from-to) | 235-239 |
Number of pages | 5 |
Journal | Journal of Nuclear Materials |
Volume | 344 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 2005 Sep 1 |
Event | Proceedings of the 11th International Symposium on Thermodynamics of Nuclear Materials - Duration: 2004 Sep 6 → 2004 Sep 9 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Materials Science(all)
- Nuclear Energy and Engineering