Influence of Chromium Oxide Layer on Surface Tritium Contamination of Type 316 Stainless Steel

Ozeki, Yohei; Hatano, Yuji; Taniguchi, Haruka; Matsuyama, Masao

doi:10.13182/fst11-a12716

Cited by 10 publications

(2 citation statements)

References 11 publications

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“…High resolution diffraction grating can distinguish these emissions. Indeed, with GDOES, the authors have successfully measured the depth profiles of D implanted in W [4] and that retained in permeation barrier coating formed on ferritic steel [5] and oxide layer of stainless steel [6]. In the case of D implanted in W, the amount of D measured with GDOES was well correlated with that determined by a thermal desorption technique [4].…”

Section: Introductionmentioning

confidence: 90%

Measurement of deuterium and helium by glow-discharge optical emission spectroscopy for plasma–surface interaction studies

Hatano

Shi

Yoshida

et al. 2012

Fusion Engineering and Design

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Section: Introductionmentioning

confidence: 90%

Measurement of deuterium and helium by glow-discharge optical emission spectroscopy for plasma–surface interaction studies

Hatano

Shi

Yoshida

et al. 2012

Fusion Engineering and Design

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“…Ozeki et al reported chromium oxides provide a similar reduction in available hydroxide compared to iron. 22 Our study compares the application of aluminum and chromium based coatings to act as a barrier to hydrogen permeation. In addition we explored a new nano-diamond coating whose permeation barrier was unknown.…”

Section: Figure 22mentioning

confidence: 99%

Aluminum and Other Coatings for the Passivation of Tritium Storage Vessels

Spencer¹,

Korinko²

2016

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Using a highly sensitive residual gas analyzer, the off gassing of hydrogen, water, and hydrocarbons from surface treated storage vessels containing deuterium was measured. The experimental storage vessels were compared to a low off-gassing, electro-polished 304L canister. Alternative vessels were made out of aluminum, or were coatings on 304L steel. Coatings included powder pack aluminide, electro-plated aluminum, powder pack chromide, dense electro-plated chromium, copper plated, and copper plated with 25 and 50 percent nano-diamond. Vessels were loaded with low pressure deuterium to observe exchange with protium or hydrogen as observed with formation of HD and HDO. Off gas of D2O or possible CD4 was observed at mass 20. The main off gas in all of the studies was H2. The studies indicated that coatings required significant post coating treatment to reduce off gas and enhance the permeation barrier from gases likely added during the coating process. Dense packed aluminum coatings needed heating to drive off water. Electro-plated aluminum, chromium and copper coatings appeared to trap hydrogen from the plating process. Nano-diamond appeared to enhance the exchange rate with hydrogen off gas and its coating process trapped significant amounts of hydrogen. Aluminum caused more protium exchange than chromium treated surfaces. Aluminum coatings released more water but pure aluminum vessels released small amounts of hydrogen, little water, and generally performed well. Chromium coating had residual hydrogen that was difficult to totally outgas but otherwise gave low residuals for water and hydrocarbons.

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Molecular dynamics study of melting, diffusion, and sintering of cementite chromia core–shell particles

Gao

Pastrana

Manogharan

et al. 2021

Computational Materials Science

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Influence of Chromium Oxide Layer on Surface Tritium Contamination of Type 316 Stainless Steel

Cited by 10 publications

References 11 publications

Measurement of deuterium and helium by glow-discharge optical emission spectroscopy for plasma–surface interaction studies

Measurement of deuterium and helium by glow-discharge optical emission spectroscopy for plasma–surface interaction studies

Aluminum and Other Coatings for the Passivation of Tritium Storage Vessels

Molecular dynamics study of melting, diffusion, and sintering of cementite chromia core–shell particles

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