Isotope effects of hydrogen isotope absorption and diffusion in li 0.17pb0.83jb eutectic alloy

Yuuki Edao, Satoshi Fukada, Hidetaka Noguchi, Yasushi Maeda, Kazunari Katayama

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9 Citations (Scopus)

Abstract

Rates and amounts of absorption and desorption of hydrogen and deuterium in a Li0.17Pb0.83 eutectic alloy are determined under the conditions of temperature of 400-700°C and the upstream H2 or D2 partial pressure of 103Pa-105Pa by using a one-dimensional permeation pot. Because of small interaction between the alloy and dissolved atoms of hydrogen isotopes, the temperature dependence of the Sieverts' solubility constant for the Li0.17Pb0.83-H or -D system, i.e., the enthalpy change of absorption or desorption, is small, and the absolute value of D solubility is higher than that of H. The isotope effect of diffusivity between H and D is very small. The generation rate and inventory of tritium (T) in a fusion blanket is estimated under an assumption of one-dimensional Li0.17Pb0.83 blanket system with a constant and uniform neutron flux.

Original languageEnglish
Pages (from-to)831-835
Number of pages5
JournalFusion Science and Technology
Volume56
Issue number2
DOIs
Publication statusPublished - Aug 2009

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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