Model of Oxygen Potential of (Pu $_{0.3}$ U $_{0.7}$ )O $_{2pm X}$ and (Np $_{0.02}$ Am $_{0.02}$ Pu $_{0.3}$ U $_{0.66}$ )O $_{2-X}$ based on Lattice Defect Theory

Kato, Masato ; Aono, Shigenori; Kihara, Yoshiyuki; Konashi, Kenji*

The model of oxygen potential of (Pu $_{0.3}$ U $_{0.7}$ )O $_{2pm X}$ was derived by experimental data set based on the lattice defect theory. In the model, the oxygen potential is calculated as a function of O/M and the temperature of fuel. The oxygen potential was evaluated by the crossed point of two lines of oxygen potential in the hypo-stoichiometric region and in the hyper-stoichiometric region. The oxygen potential of (Np $_{0.02}$ Am $_{0.02}$ Pu $_{0.3}$ U $_{0.66}$ )O $_{2-X}$ was also evaluated and compared with that of (Pu $_{0.3}$ U $_{0.7}$ )O2-X

Language	:	English
Journal	:	Materials Models and Simulations for Nuclear Fuels MMSNF-3, CD-ROM, 13p.
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Pages	:	13 Pages
Publication Year/Month	:	2004/00
Meeting title	:	Materials Models and Simulations for Nuclear Fuels
Held date	:	2004/11
Location (city)	:	ワシントン
Location (country)	:	U.S.A.
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Keywords	:	no keyword
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Registration No. : 08-2004-0857
JAEA Abstracts No. :
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Model of Oxygen Potential of (PuU)O and (NpAmPuU)O based on Lattice Defect Theory

Model of Oxygen Potential of (Pu $_{0.3}$ U $_{0.7}$ )O $_{2pm X}$ and (Np $_{0.02}$ Am $_{0.02}$ Pu $_{0.3}$ U $_{0.66}$ )O $_{2-X}$ based on Lattice Defect Theory