Reduction of tritium permeation through 304L stainless steel using aluminium ion implantation

We have demonstrated the reduction of tritium gas permeation through 304L stainless steel using aluminum ion implantation. The implanted aluminum was selectively oxidized to form a thin, coherent, and stable Al2O3-rich layer on the stainless-steel surface. Tritium permeability at 100 and 170 °C was...

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Bibliographic Details
Published in:Applied physics letters 1987-04, Vol.50 (14), p.940-942
Main Authors: MAIENSCHEIN, J. L, MUSKET, R. G, MCMURPHY, F. E, BROWN, D. W
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Solubility, segregation, and mixing
phase separation
Specific materials
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Summary:We have demonstrated the reduction of tritium gas permeation through 304L stainless steel using aluminum ion implantation. The implanted aluminum was selectively oxidized to form a thin, coherent, and stable Al2O3-rich layer on the stainless-steel surface. Tritium permeability at 100 and 170 °C was reduced 600–700-fold compared to clean stainless steel and 20-fold compared to stainless steel with native oxide. Since greater reductions are expected with improved Al2O3 layers, this approach is a promising alternative for reduction of permeation of all hydrogen isotopes through stainless steel and other materials.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.97987