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Investigations on the Role of Surface Layers in HLW Glass Leaching

Published online by Cambridge University Press:  28 February 2011

R. Conradt ,
H. Roggendorf  and
H. Scholze
R. Conradt
Affiliation:
Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, D-8700 Würzburg, Federal Repuplic of Germany
H. Roggendorf
Affiliation:
Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, D-8700 Würzburg, Federal Repuplic of Germany
H. Scholze
Affiliation:
Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, D-8700 Würzburg, Federal Repuplic of Germany
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Abstract

A corrosion test series was performed to clarify the role of reaction product layers on the corrosion of a simulated HLW borosilicate glass in a salt brine under hydrothermal conditions. The layers were unprotective at 200°C. At 120°C, slight protective effects ocurred when the leachant contained dissolved reaction products. The consequence for the long term behaviour between 120 and 200°C is a constant glass dissolution rate.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 50: Symposium STOCKHOLM – Scientific Basis for Nuclear Waste Management IX , 1985 , 203
Copyright
Copyright © Materials Research Society 1985

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References

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