TY - JOUR
T1 - Oxygen potentials of plutonium and uranium mixed oxide
AU - Kato, Masato
AU - Tamura, Tetsuya
AU - Konashi, Kenji
AU - Aono, Shigenori
PY - 2005/9/1
Y1 - 2005/9/1
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jnucmat.2005.04.048
DO - 10.1016/j.jnucmat.2005.04.048
M3 - Conference article
AN - SCOPUS:23744451588
SN - 0022-3115
VL - 344
SP - 235
EP - 239
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 -