In-situ, time resolved monitoring of uranium in BFS: OPC grout. Part 1: Corrosion in water vapour
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
- European Synchrotron Radiation Facility
- University of Bristol
- Imperial College London
Uranium encapsulated in grout was exposed to water vapour for extended periods of time. Through synchrotron x-ray powder diffraction and tomography measurements, uranium dioxide was determined the dominant corrosion product over a 50-week time period. The oxide growth rate initiated rapidly, with rates comparable to the U + H2O reaction. Over time, the reaction rate decreased and eventually plateaued to a rate similar to the U + H2O + O2 reaction. This behaviour was not attributed to oxygen ingress, but instead the decreasing permeability of the grout, limiting oxidising species access to the metal surface.
|Publication status||Published - 11 Aug 2017|