Release behavior of water vapor and mass loss from lithium titanate

Kazunari Katayama, Hideaki Kashimura, Tsuyoshi Hoshino, Masabumi Nishikawa, Hideki Yamasaki, Shinichiro Ishikawa, Yasuhito Ohnishi, Satoshi Fukada

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The release behavior of tritium generated by neutron irradiation is strongly affected by the surface water of ceramic breeder materials. In the present study, the release behavior of water vapor from Li 2TiO 3 with added Li, which is in a developmental stage in JAEA (Japan Atomic Energy Agency) as an advanced tritium breeder materials, was observed at elevated temperatures. The capacity of chemical adsorbed water in nitrogen atmosphere and the water formation capacity in hydrogen atmosphere were quantified, respectively. The mass loss of the Li 2TiO 3 due to evaporation of Li-containing species at 900 °C in 10,000 ppmH 2/N 2 was estimated to be 1.8% of initial sample weight. The majority of evaporated Li adhered to a quartz tube around the sample bed. It was shown experimentally that the mass loss in water vapor atmosphere is larger than that in hydrogen atmosphere.

Original languageEnglish
Pages (from-to)927-931
Number of pages5
JournalFusion Engineering and Design
Volume87
Issue number5-6
DOIs
Publication statusPublished - Aug 1 2012

All Science Journal Classification (ASJC) codes

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

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    Katayama, K., Kashimura, H., Hoshino, T., Nishikawa, M., Yamasaki, H., Ishikawa, S., Ohnishi, Y., & Fukada, S. (2012). Release behavior of water vapor and mass loss from lithium titanate. Fusion Engineering and Design, 87(5-6), 927-931. https://doi.org/10.1016/j.fusengdes.2012.02.050