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MOX燃料基礎特性の機構論的統合モデル,2; 酸素ポテンシャル、酸素拡散係数、蒸気圧の関係

Science-based integrated models for MOX properties, 2; Relation among oxygen potential, oxygen diffusion coefficient and vapor pressure

渡部 雅  ; 松本 卓; 廣岡 瞬 ; 加藤 正人   

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

MOX燃料の酸素ポテンシャル、酸素拡散係数及び蒸気圧について、先行研究及び原子力機構で取得した実験データを評価し、幅広い温度、組成及びO/M比に対応可能な関係式を導出することに成功した。

Oxygen potential, oxygen diffusion coefficient and vapor pressure of MOX fuel were evaluated based on defect chemistry using previous study data and updated JAEA's data. The relational equations to determine oxygen potential, oxygen diffusion coefficient and vapor pressure were derived as functions of O/M ratio, Pu content and temperature.

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