TY - JOUR
T1 - In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1:
T2 - Corrosion in water vapour
AU - Stitt, Milly
AU - Paraskevoulakos, Haris
AU - Banos, Antonis
AU - Harker, Nicholas
AU - Hallam, Keith
AU - Davenport, Alison
AU - Street, Steven
AU - Scott, Tom
PY - 2017/8/11
Y1 - 2017/8/11
N2 - 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
AB - 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
U2 - 10.1038/s41598-017-08601-x
DO - 10.1038/s41598-017-08601-x
M3 - Article (Academic Journal)
C2 - 28801638
VL - 7
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 7999
ER -