[1A01-06] Liquid Metal and Functional Materials

[1A02] Investigation on repair technique of functional coatings by recoating

*Tetsuma Ito¹, Hikaru Fujiwara¹, Kento Shirota¹, Wataru Matsuura¹, Kheim Do Duy¹, Yuka Shimizu¹ (1. Shizuoka University )

Keywords:tritium, permeation, coating, repair

Investigations on functional coatings to mitigate tritium permeation in fusion reactor blankets have progressed and shown a high hydrogen isotope permeation reduction performance and compatibility with tritium breeders using ceramics. On the other hand, the degradation of the coating is expected during a long-term operation in the blanket by thermal cycles, irradiation damage, and corrosion, and the degraded components will be repaired or replaced. Nonetheless, no study on repair technology for damaged coatings has been reported. In this presentation, we present a repair method for damaged coatings by recoating.