29 October 2017 to 3 November 2017
Australia/Sydney timezone

The Corrosion of Copper Nuclear Waste Containers under Deep Geologic Disposal ConditionsF

30 Oct 2017, 17:00
Oral Presentation National and international collaborative waste management programs Spent Fuel & Zircaloy Cladding


David Shoesmith (Western University)


The corrosion of high level copper nuclear waste containers under permanent disposal conditions can occur via a number of processes which change in importance as the environment within a deep geologic repository evolves from warm and oxic to cool and anoxic. Under warm and oxic conditions the container could be exposed to gamma irradiated conditions which evolve from aerated vapour to fully saturated aqueous conditions. During this period the possibility of localized corrosion (e.g., pitting) must be considered. Over extended exposure periods when anoxic conditions prevail corrosion will be sustained by reaction with sulphide produced either by remote microbial activity or the dissolution of sulphides present in the clays compacted around the container. Studies to understand and quantify both these corrosion processes are underway. In this presentation these studies will be discussed and their use in the development of corrosion models described.

Primary author

David Shoesmith (Western University)


Dmitrij Zagidulin (Western University) James Noel (Western University) Sridhar Ramamurthy (Western University)

Presentation Materials

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