FP chemistry in a high temperature region of LWR under a severe accident, 3; Evaluation of chemical reaction during boron release from molten control blade

Imoto, Jumpei ; Miwa, Shuhei ; Takano, Masahide ; Osaka, Masahiko

In order to improve the boron release model from the molten BWR control blade under LWR severe accident, chemical reaction during the boron release was investigated experimentally. Thermal analysis of the Fe-B compound formed in molten control blade was carried out and the reaction products were analyzed. Fe-B-O compound was detected as reaction product at oxidation of the Fe $_{2}$ B compound in 1200-1400K using X-ray diffraction. It was found that B release from Fe $_{2}$ B occurred via oxidation formation of B $_{2}$ O $_{3}$ and stable Fe-B-O compound.

Language	:	Japanese
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Meeting title	:	日本原子力学会2018年春の年会
Held date	:	2018/03
Location (city)	:	吹田
Location (country)	:	日本
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Keywords	:	福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
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Registration No. : BB20171794
JAEA Abstracts No. :
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