Effect of water formation reaction on tritium release behavior from Li 4SiO4

H. Yamasaki, K. Kashimura, T. Kanazawa, Kazunari Katayama, N. Yamashita, Satoshi Fukada, M. Nishikawa

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3 Citations (Scopus)


It is observed that a fair amount of physical and chemical adsorbed water is released from solid breeder materials by introduction of dry N2 gas and that not a little amount of water is also continuously produced by the water formation reaction when the purge gas with hydrogen is applied. It is reported by present authors that the water released to the purge gas from solid breeder materials affects the tritium release behavior. The capacity and desorption rate of chemical adsorbed water, and the capacity and rate of water formation reaction for Li4SiO4, which has been supplied from FzK, are quantified in this study. It is found that the overall reaction rate of water formation on Li4SiO4 is larger than the rate observed for other solid breeder materials. Therefore, most hydrogen added to the blanket purge gas changes to water so far as the water formation capacity of Li4SiO4 remains. It is also found that water formation capacity Of Li4SiO4 is almost the same as that Of Li 2TiO3. Tritium release behavior from Li 4SiO4 and Li2TiO3packed in the blanket are compared in this paper using the Kyushu University model and properties obtained in this study.

Original languageEnglish
Pages (from-to)1151-1154
Number of pages4
JournalFusion Science and Technology
Issue number3
Publication statusPublished - Jan 1 2011

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering


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