[2B17-20] Fundamental property

[2B17] Evaluation of FP Chemistry under Severe Accident Conditions with Focuses on the Effects of BWR Control Material

(6)Oxidation behavior of B₄C/SS/Zry mixed melts phases

*Fidelma Giulia Di Lemma¹, Shuhei Miwa¹, Juntaro Takada¹, Masahide Takano¹, Masahiko Osaka¹ (1.JAEA)

Keywords:B4C-SS-Zry, Oxidation, Steam, Severe Accident, Boron release kinetics

This work describes the oxidation and vaporization behaviors from simple Fe-B phases (Fe₂B, FeB) under steam conditions, which contributes to the experimental determination of boron (B) release kinetics from B-containing complex melts (B₄C/SS/Zry) during a severe accident. The oxidation and vaporization behavior of these samples was found to be influenced by their B/Fe ratio and by the formation of Fe-B-O compounds.