[2D15-21] FP Chemical Behavior

[2D21] FP chemistry in a high temperature region of LWR under a severe accident

(7)Surface analyses of Strontium compounds chemisorbed onto Stainless steel 304

*Afiqa Mohamad^2,1, Kunihisa Nakajima², Shuhei Miwa², Masahiko Osaka², Yuji Ohishi¹, Hiroaki Muta¹, Ken Kurosaki¹, Shinsuke Yamanaka¹ (1. Osaka University, 2. JAEA)

Keywords:Fission product, Chemisorption, Strontium , Stainless steel

A release of Sr from fuel would be enhanced by the formation of volatile SrCl₂ in case of seawater injection into the core like as Fukushima Dai-ichi Nuclear Power Plant severe accidents. We investigated the chemisorption behavior of released SrCl₂ onto type 304 stainless steel. It was observed that stable Sr-Si-O compounds were formed on the stainless steel surface by a chemisorption.