Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6744063 | Fusion Engineering and Design | 2017 | 6 Pages |
Abstract
The first wall of a magnetic fusion reactor serves to separate the edge plasma from breeding blankets, which will be subjected to bi-directional hydrogen isotopes permeation: in one direction by plasma-driven permeation, and in the other direction by gas-driven permeation. In this work, hydrogen isotopes transport through a reduced activation ferritic steel F82H has been investigated in the temperature range of 150-500 °C. The transport parameters including permeability, diffusivity, solubility and surface recombination coefficient have been measured and the isotopic mass effect has been discussed. Bi-directional hydrogen isotopes gas- and plasma-driven permeation has been demonstrated for the first time under controlled experimental conditions.
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Authors
Yue Xu, Yoshi Hirooka, Takuya Nagasaka,