Experimental studies on Cs chemisorption on reactor structural materials and their re-vaporization behavior

Suzuki, Eriko ; Di Lemma, F. G.*; Nakajima, Kunihisa ; Yamashita, Shinichiro ; Osaka, Masahiko

In order to clarify the re-vaporization behavior of caesium (Cs) chemisorbed compounds which formed onto reactor structural materials during Severe Accident (SA), Cs chemisorbed samples were reheated at 1000 $^{circ}$ C and then microstructural analysis of the chemisorbed samples was conducted. In the case of stainless steel containing Mo, Cs-Mo-O compounds were formed on surface, together with major Cs-Fe-Si-O compounds, and re-vaporized easier than Cs-Fe-Si-O compounds at 1000 $^{circ}$ C.

Language	:	Japanese
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Meeting title	:	J-Actinet研究会「核燃料・アクチニド研究の将来を担う学生・若手・中堅研究者」
Held date	:	2016/12
Location (city)	:	吹田
Location (country)	:	日本
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Keywords	:	セシウム化学吸着; ステンレス鋼; シビアアクシデント; 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
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Registration No. : BB20161522
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