[1A07-10] Reaction of Cesium with Stainless Steel

[1A07] Cs chemisorption behavior onto stainless steel under steam atmosphere

*Kunihisa Nakajima¹, Eriko Suzuki¹, Jumpei Imoto¹, Shuhei Miwa¹, Masahiko Osaka¹ (1. JAEA)

Keywords:Cesium , stainless steel, chemisorption

Experiment on Cs chemisorption behavior onto stainless steel, which can significantly influence Cs distribution and property within nuclear reactor during light water reactor severe accident, was performed under steam atmosphere. The experimental result indicated that a Cs-Cr-O compound was formed instead of Cs-(Fe)-Si-O compounds, which are known to be formed under mixed hydrogen and steam atmospheres.