Presentation Information
[2I13]Corrosion behavior of magnesium oxide coating in lithium lead and evaluation of its deuterium permeation reduction performance
*Kiichi Yokoyama1, Yuka Shimizu1, Tetsuma Ito1, Kosuke Okubo1, Teruya Tanaka2, Wataru Inami1, Yoshimasa Kawata1, Takumi Chikada1 (1. Shizuoka Univ., 2. NIFS)
Keywords:
tritium,permeation,coating,magnesium oxide,corrosion
Toward the realization of fusion reactor liquid blanket system, research on the application of functional ceramic coatings to structural materials in a blanket system has progressed. This has shown the high hydrogen isotope permeation reduction of ceramic coatings and their compatibility with tritium breeders. Magnesium oxide, which has excellent thermodynamic stability and electrical properties, has been studied focusing on its electrical insulation properties, but its corrosion behavior in lithium lead and hydrogen isotope permeation behavior have not yet been clarified. In this study, we will report the results of lithium lead exposure tests and deuterium permeation test for magnesium oxide coatings fabricated by magnetron sputtering.