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Journal Articles

Oxygen potentials, oxygen diffusion coefficients and defect equilibria of nonstoichiometric (U,Pu)O$$_{2pm x}$$

Kato, Masato; Watanabe, Masashi; Matsumoto, Taku; Hirooka, Shun; Akashi, Masatoshi

Journal of Nuclear Materials, 487, p.424 - 432, 2017/04

https://doi.org/10.1016/j.jnucmat.2017.01.056
 Times Cited Count：12 Percentile：75.51(Materials Science, Multidisciplinary)

Oxygen potential of (U,Pu)O$$_{2pm x}$$ was evaluated based on defect chemistry using an updated experimental data set. The relationship between oxygen partial pressure and deviation $$x$$ in (U,Pu)O$$_{2pm x}$$ was analyzed, and equilibrium constants of defect formation were determined as functions of Pu content and temperature. Brouwer's diagrams were constructed using the determined equilibrium constants, and a relational equation to determine O/M ratio was derived as functions of O/M ratio, Pu content and temperature. In addition, relationship between oxygen potential and oxygen diffusion coefficients were described.

JAEA Reports

Handbook on process and chemistry of nuclear fuel reprocessing

Department of Fuel Cycle Safety Research

JAERI-Review 2001-038, 600 Pages, 2001/12

JAERI-Review-2001-038.pdf:19.64MB

no abstracts in English

Oral presentation

Science-based integrated models for MOX properties, 3; Heat capacity and thermal conductivity

Kato, Masato; Morimoto, Kyoichi; Nakamura, Hiroki; Machida, Masahiko

no journal, , 

no abstracts in English

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