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東京電力福島第一発電所事故におけるセシウムの化学的挙動に関する検討,6; 不溶性Cs粒子の微細構造の検討

Investigation of in-reactor cesium chemical behavior in TEPCO's Fukushima Daiichi Nuclear Power Station accident, 6; Simulation study on microstructure of Cs-bearing particle

大石 佑治*; 中森 文博*; 牟田 浩明*; 黒崎 健*; 山中 伸介*; 坂田 孝夫*; 佐藤 和久*; 保田 英洋*; 逢坂 正彦

Oishi, Yuji*; Nakamori, Fumihiro*; Muta, Hiroaki*; Kurosaki, Ken*; Yamanaka, Shinsuke*; Sakata, Takao*; Sato, Kazuhisa*; Yasuda, Hidehiro*; Osaka, Masahiko

不溶性Cs粒子の組成を模擬した試料を溶融後に冷却し、フランクリナイト(ZnFe$$_{2}$$O$$_{4}$$)の核形成-析出挙動と冷却条件との関係を調べた。また、スピノーダル分解によるフランクリナイト生成の可能性について検討した。

Simulant material of Cs-bearing particle was synthesized from the melted glass of which composition was selected based on the composition of the Cs-bearing particle. The relationship between the nucleation behavior of Franklinite (ZnFe$$_{2}$$O$$_{4}$$) and cooling speed was studied. The possibility of the formation of Franklinite phase through spinodal decomposition was also evaluated.

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