Journal
CORROSION SCIENCE
Volume 189, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2021.109583
Keywords
A; Ceramic; B; SEM; C; Hydrogen permeation; C; Oxide coatings; C; Interfaces
Funding
- JSPS KAKENHI [19H01873]
- NIFS Collaboration Research program [NIFS18KEMF119]
- Grants-in-Aid for Scientific Research [19H01873] Funding Source: KAKEN
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A deuterium permeation measurement system was established to investigate the behavior of multi-layer ceramic coatings under corrosive environments, showing that coating degradation increased with the number of interfaces between different ceramics.
Corrosion of tritium permeation barrier ceramic coatings by liquid tritium breeders is an unavoidable concern in a high thermal efficiency fusion reactor. In this study, we have established a deuterium permeation measurement system under static Li-Pb exposure conditions to investigate the deuterium permeation behavior of multi-layer ceramic coatings under corrosive environments. The system successfully detected the coating degradation on the moment by measuring an irregular increase in deuterium permeation. The permeation behaviors showed that the coating degraded more seriously as the number of the interfaces between the different ceramics increased.
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