2020 Annual Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 501-1 Basic Properties/501-2 Nuclear Fuel and the Irradiation Behavior

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

Mon. Mar 16, 2020 2:45 PM - 3:50 PM Room A (Lecture Bildg. L 1F L-4)

Chair:Kyoichi Morimoto(JAEA)

3:00 PM - 3:15 PM

[1A08] Microstructure of Cs chemisorbed stainless steel type 304

*Eriko Suzuki1,2, Kunihisa Nakajima1, Shuhei Miwa1, Masahiko Osaka1, Naoyuki Hashimoto2, Shigehito Isobe2 (1. JAEA, 2. Hokkaido Univ.)

Keywords:Cs chemisorption, Observation of microstructure, Stainless steel

In order to clarify the revaporization behavior of cesium (Cs) chemisorbed onto stainless steel under severe accident conditions, the chemical form and distribution of fine Cs chemisorbed compounds were investigated using microscopic analytical methods. It was found that the chemial form and crystal structure differed according to the temperature of Cs chemisorption and depth from the surface. The difference can affect the revaporization rate and revaporized species.