検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Interdiffusion behavior of Pu and Am in MOX fuels

MOX燃料中のプルトニウム及びアメリシウムの相互拡散挙動

松本 卓; 有馬 立身*; 稲垣 八穂広*; 出光 一哉*; 森本 恭一; 加藤 正人; 宇野 弘樹*; 田村 哲也*

Matsumoto, Taku; Arima, Tatsumi*; Inagaki, Yaohiro*; Idemitsu, Kazuya*; Morimoto, Kyoichi; Kato, Masato; Uno, Hiroki*; Tamura, Tetsuya*

(U$$_{0.50}$$Pu$$_{0.47}$$Am$$_{0.03}$$)O$$_{2-x}$$及びUO$$_2$$の拡散対を作製し1873KにおけるO/M=2.00及び1.96での粒界・粒内拡散評価を行った。O/M=2.00における粒内拡散係数は1.96の粒内拡散係数に比べ2桁程度大きい値が得られた。また、O/M=2.00において粒界拡散は確認できたが、O/M=1.96では粒界拡散が確認できなかった。

The diffusion couples of (U$$_{0.50}$$Pu$$_{0.47}$$Am$$_{0.03}$$)O$$_{2-x}$$ and UO$$_2$$ were annealed at 1873K in an atmosphere of $$Delta$$G$$_{O2}$$ that correspond to O/M = 2.00 or 1.96, and the concentration profile of each actinide elements around the interface was measured with EPMA. It was clearly found that the diffusion coefficient at O/M = 2.00 was about two orders of magnitude greater than that at O/M = 1.96. In addition, it was observed that grain boundary diffusion is so large compared to bulk one for O/M = 2.00. On the other hand, for O/M = 1.96, grain boundary and bulk diffusions of these actinides were not clearly observed.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.