Presentation Information

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[2A04]Dissolution behavior of ceramic-solidified U–Fe–O system simulated fuel debris under low-pH conditions

*Takuma Koyama¹, Takayuki Sasaki¹, Taishi Kobayashi¹, Daisuke Akiyama², Akira Kirishima² (1. KYOTO UNIVERSITY, 2. Tohoku Univ.)

Keywords:

ceramic solidification,fuel debris,disolution behavior,titanium oxide

To evaluate the applicability of titanium-containing simulated fuel debris ceramic solidification bodies, the dissolution reaction of this solid phase was experimentally investigated. Compared to UO2, the dissolution rate of uranium was suppressed due to the hydrolysis of tetravalent titanium on the solid phase surface.

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