[2L01-08] Tritium Release Behaviors, Production, Measurement

[2L04] T-containment performance of Li rod in high-temperature gas-cooled reactor for T production

(1)Hydrogen absorption properties of Ni coated Zircaloy-4 co-existing with Li oxide

*Teppei Otsuka¹, Kakeru Yokoyama¹, Yuya Akahoshi¹, Kazunari Katayama², Hideaki Matsuura², Minoru Goto³, Shigeaki Nakagawa³, Etsuo Ishitsuka³, Shinpei Hamamoto³, Kenji Tobita⁴ (1. Kindai Univ., 2. Kyushu Univ., 3. JAEA, 4. QST)

Keywords:Tritium, Lithium aluminum oxide, Nickel coating, Diffusion

Production of tritium (T) from Lithium (Li) in an irradiation rod using high temperature gas cooling reactor has been proposed for procurement of fusion reactors fuels. Production T could be absorbed by Zircaloy-4 co-existing with Li oxide in the rod and hindered to be released by permeation out of the rod. In the present study, rates of hydrogen absorption in the Ni-plated Zry4 were examined at various temperatures.