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A Modeling Study of General Corrosion of Copper Overpack for Geological Isolation of High-Level Radioactive Waste

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Abstract

This paper describes a modeling study for general corrosion of copper which is a candidate material for high-level radioactive waste overpacks. The model is a mixed-potential model combined with diffusive transport of reactants and reaction products. The rest potential and corrosion rate of copper in aerated solution were measured while controlling the thickness of a diffusive solution layer on the copper surface using a rotating-disk electrode. Experimental data were used for validation of the model.

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Authors and Affiliations

  1. Japan Nuclear Cycle Development Institute, 4-33 Muramatsu, Tokai-mura, Naka-gun, Ibarakiken, 319-1194, Japan

    A. Honda, N. Taniguchi & H. Ishikawa

  2. Inspection Development Company Ltd., 4-33 Muramatsu, Tokai-mura, Naka-gun, Ibarakiken, 319-1194, Japan

    M. Kawasaki

Authors
  1. A. Honda
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  2. N. Taniguchi
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  3. H. Ishikawa
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  4. M. Kawasaki
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Honda, A., Taniguchi, N., Ishikawa, H. et al. A Modeling Study of General Corrosion of Copper Overpack for Geological Isolation of High-Level Radioactive Waste. MRS Online Proceedings Library 556, 911 (1998). https://doi.org/10.1557/PROC-556-911

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  • DOI: https://doi.org/10.1557/PROC-556-911

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