Estimation of chemical reaction for boron release from iron borides and zirconium boride formed in mixed melts of boron carbide-stainless steel-zircaloy

Imoto, Jumpei ; Miwa, Shuhei ; Osaka, Masahiko

The chemical reactions for release of B from Fe-B and Zr-B compounds formed in the BWR control blade melts at severe accident in light water reactor were experimentally estimated by thermal analysis and X-ray diffraction analysis. For the Zr-B compounds, it was found that B was released via only B $_{2}$ O $_{3}$ formed by oxidation. On the other hand, for the Fe-B compounds, it was found that B were released via two kinds of B oxides, B $_{2}$ O $_{3}$ and stable Fe-B-O compounds.

Language	:	English
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Meeting title	:	2nd TITECH-CRIEPI-JAEA Joint Workshop
Held date	:	2018/07
Location (city)	:	Tokyo
Location (country)	:	Japan
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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. : BB20180418
JAEA Abstracts No. :
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