[2L19-23] Hydrogen Isotopes in Materials

[2L23] Characterization and hydrogen isotope permeation behavior of yttria-stabilized zirconia coating prepared by magnetron sputtering

*Riho Endoh¹, Keisuke Kimura¹, Kazuki Nakamura¹, Michael Zielinski², Johann Riesch², Hikari Fujita³, Yoshimitsu Hishinuma⁴, Takumi Chikada¹ (1. Shizuoka Univ., 2. Max Planc Institut, 3. Univ. of Tokyo, 4. NIFS)

Keywords:Tritium, Permeation, Coating, Yttria-stabilized zirconia

For the realization of a fusion reactor blanket, tritium permeation barriers have been studied mainly using ceramic coatings to suppress tritium leakage through structural materials. Among various coating candidate materials, yttria-stabilized zirconia (YSZ) exhibits an excellent heat resistance and fracture toughness. In this study, fabrication of YSZ coatings by magnetron sputtering followed by structural analysis with deuterium permeation behavior is reported.