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Electronic Thesis and Dissertation Repository

Physical Sciences and Mathematics

2013

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Electrochemical And Surface Compositional Studies On Uranium Dioxide, Mayuri Razdan Dec 2013

Electrochemical And Surface Compositional Studies On Uranium Dioxide, Mayuri Razdan

Electronic Thesis and Dissertation Repository

This thesis describes electrochemical and surface compositional studies performed on a number of simulated nuclear fuel (SIMFUEL) materials under conditions relevant to permanent disposal of spent nuclear fuel in a geologic repository. This is important since a number of critical issues have been identified in the event of waste container failure. The research performed was mainly focused in three areas: (i) the influence of low pH on the surface chemistry of UO2, since acidity could develop within corrosion product deposits and flaws in the fuel; (ii) the combined influence of dissolved H2 and H2O2 (H ...