Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.685545
Title: In-situ and time resolved observation of uranium corrosion applied to nuclear waste storage and disposal
Author: Stitt, Camilla Amy de-Maid
ISNI:       0000 0004 5915 4370
Awarding Body: University of Bristol
Current Institution: University of Bristol
Date of Award: 2015
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Abstract:
The presence of uranium in grouted Magnox intermediate level waste (ILW) containers is a concern for the nuclear waste industry. Recent inspection of 16 randomly selected ILW containers revealed bulging around the circumference of 3 containers, the cause of which is currently unknown. The bulges are suspected to be related to the intermittent existence of large uranium masses, the corrosion of which produces products almost twice the volume of uranium metal. Formation of hydrogen and uranium hydride through the oxidation of uranium and Magnox with water is of particular concern owing to their pyrophoric nature on exposure to oxidising conditions should the container fail. The understanding of uranium corrosion mechanisms and rates in ILW containment is therefore vital in assessing the risk posed by the bulging waste containers during container storage, transportation and disposal. The following study aimed to contribute to this understanding by performing experiments that transition from laboratory based investigations to conditions more relevant to real ILW scenarios.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.685545  DOI: Not available
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