[1B08-14] Permeation and retention characteristics of hydrogen isotopes

[1B11] Corrosion behavior of tritium permeation barrier coatings fabricated by a liquid phase method in liquid lithium-lead

*Moeki Matsunaga¹, Seira Horikoshi², Jumpei Mochizuki², Hikari Fujita¹, Yasuhisa Oya^1,2, Takayuki Terai³, Kanetsugu Isobe⁴, Takumi Hayashi⁴, Takumi Chikada^1,2 (1. Fac. Sci., Shizuoka Univ., 2. Grad. Sch., Shizuoka Univ., 3. Sch. Eng., Univ. Tokyo, 4. QST)

Keywords:Lithium-lead, Corrosion, Coating, Erbium oxide, Yttrium oxide, Zirconium oxide

Er₂O_3, Y₂O₃ and ZrO₂ coatings were fabricated on reduced activation ferritic/martensitic steel substrates by metal organic decomposition which is a promising coating technique for plant-scale fabrication with a large reduction of hydrogen isotope permeation. The static immersion tests for the coatings in liquid lithium-lead at 400-600 ⁰C for 50-200 h were performed to investigate the corrosion behavior.