[2B10-14] Blanket Materials/Coating

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[2B13] Characterization and hydrogen isotope permeation behavior of silicon oxide coating fabricated by liquid phase method

*Yuka Shimizu¹, Tetsuma Ito¹, Takumi Chikada¹ (1. Shizuoka Univ.)

Keywords:

Tritium,Permeation,Coating,Silicon oxide

Functional coatings have developed to reduce tritium permeation and corrosion by tritium breeders in fusion reactor blanket systems. Ceramic coatings such as metal oxides showed high hydrogen isotope permeation reduction performance; however, oxidization of steel substrates by oxygen diffusion through the coating causes degradation of the coating. In this presentation, we report structural analysis and hydrogen isotope permeation behavior of functional coatings fabricated by a liquid phase method using silicon dioxide with a low oxygen coefficient.