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Performance Analysis of Copper Canister Corrosion Under Oxidizing or Reducing Conditions

Published online by Cambridge University Press:  15 February 2011

Karen Worgan ,
Michael Apted  and
Rolf Sjöblom
Karen Worgan
Affiliation:
Intera Information Technologies, Inc., Denver, Colorado 80235
Michael Apted
Affiliation:
Intera Information Technologies, Inc., Denver, Colorado 80235
Rolf Sjöblom
Affiliation:
Swedish Nuclear Power Inspectorate, Stockholm, Sweden
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Abstract

The finite-difference CAMEO code for modeling general corrosion of copper canisters is described. CAMEO represents the engineered barrier system and surrounding fractured host rock in 3-dimensional cylindrical coordinates. The time of containment failure is evaluated using CAMEO, as constrained by transport rates of corrodants to the canister or by transport rates of corrodant products away from the canister. Additional chemical processes explicitly modeled in CAMEO include 1) copper corrosion, and 2) kinetics of Cu(I) oxidation to Cu(II), both as a function of near-field pore water chemistry, specifically pH, Eh, and chloride concentration. The diffusional transport and sorption behavior of Cu(I) and Cu(II) are also separately incorporated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 695
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. SKB, (1992), SKB-91. Final Disposal of Spent Nuclear Fuel. Importance of the Bedrock for Safety. SKB Technical Report 92–20, SKB, Stockholm, Sweden.Google Scholar
2. SKI (1991), SKI Project-90, SKI Technical Report 91–23, Summary, Vols. I and II, August 1991, Swedish Nuclear Power Inspectorate, Stockholm, Sweden.Google Scholar
3. King, F. and LeNeveu, D., (1992), “Prediction of the lifetimes of copper nuclear waste containers,” Focus ’91, Am. Nuc.Soc, LaGrange Park, IL, pp. 253–261.Google Scholar
4. King, F., LeNeveu, D. M. and Jobe, D. J., (1993), “Modelling the effects of evolving redox conditions on the corrosion of copper containers,” Scientific Basis for Nuclear Waste Management XVII. Materials Research Society, Pittsburgh, PA.Google Scholar
5. Werme, L., (1990), Near-field Performance of the Advanced Cold Process (ACP) Canister, SKB Technical Report 90–31, SKB, Stockholm, Sweden.Google Scholar
6. Helgeson, H.C, Delany, J. M., Nesbitt, H. W., and Bird, D.K., (1979), “Summary and critique of the thermodynamic properties of rock-forming minerals,” Am. J Sci., 278A, 229.Google Scholar
7. SKN, (1992), Stability of Metallic Copper in the Near Surface Environment, SKN Report 57, National Board for Spent Nuclear Fuel, Stockholm Sweden.Google Scholar
8. Eary, L.E. and Schramke, J. A., (1990), “Rates of inorganic oxidation reactions involving dissolved oxygen,” Chemical Modelling of Aqueous Systems II, Am. Chem. Soc., NY, NY.Google Scholar
9. Worgan, K. and Robinson, P., (1993), The CALIBRE Source Term Code: Technical Documentation for Version 2, Intera Information Technologies Report No.: IM3583–3, 1993.Google Scholar