[1H11-14] Hydrogen Isotope Behavior

[1H11] Effects of crystal structures and microstructures of Nickel-coated Titanium spherical powder and Lithium Oxide on their high-temperature Hydrogen Isotope absorption properties

*Kazuki Yamashita¹, Minoru Goto², Hideaki Matsuura⁴, Ishitsuka Etsuo², Shimpei Hamamoto⁵, Shigeaki Nakagawa², Kazunari Katayama³, Teppei Otsuka¹ (1. KindaiUniversity, 2. JAEA, 3. kyushu University Prime Minister, 4. KyushuUniversityFacultyofEngineering, 5. Blossom Energy Co.)

Keywords:Tritium, lithium oxide, Hydrogen absorbing alloy, high-temperature gas-cooled reactor

As one of the methods to recover tritium produced in high-temperature gas-cooled reactors, this study clarified that hydrogen (isotope) absorption by nickel-coated titanium powder particles is possible in the presence of LiAlO₂.The crystal structure and microstructure of LiAlO₂ and nickel-coated titanium particles before and after the absorption experiment were also investigated to examine the high-temperature hydrogen absorption characteristics.