[2M14-17] Accident Chemitry 2

[2M16] Investigation of in-reactor cesium chemical behavior in TEPCO’s Fukushima Daiichi Nuclear Power Station accident

(6)Simulation study on microstructure of Cs-bearing particle

*Yuji Ohishi¹, Fumihiro Nakamori¹, Hiroaki Muta¹, Ken Kurosaki¹, Shinsuke Yamanaka¹, Takao Sakata¹, Kazuhisa Sato¹, Hidehiro Yasuda¹, Osaka Masahiko^3,2 (1. Osaka Univ., 2. Japan Atomic Energy Agency, 3. International Research Institute for Nuclear Decommissioning)

Keywords:Cs-bearing particle, Microstructure, Transmission Electron Microscope

Simulant material of Cs-bearing particle was synthesized from the melted glass of which composition was selected based on the compositon of the Cs-bearing particle. The relashionship between the nucleation behavior of Franklinite (ZnFe2O4) and cooling speed was studied. The possibility of the formation of Franklinite phase through spinodal decomposition was also evaluated.