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UKAEA-CCFE-PR(25)3952024
Measurements of lattice strain at high spatial resolution are becoming accessible and routine, owing to advances in imaging techniques such as 4D Scanning Transmission Electron Microscopy. This has the potential to enhance materials characterisation, but the data are difficult to interpret. We present a procedure for extracting local concentrations…
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UKAEA-CCFE-PR(24)2442022
Zirconium alloys are widely used as the fuel cladding material in pressurised water reactors where a significant population of defects and dislocations is produced by exposure to neutrons. We present and interpret synchrotron microbeam X-ray diffraction measurements of proton- irradiated Zircaloy-4, where we identify a transient peak and the sub…
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UKAEA-CCFE-PR(21)602021
Using atomistic simulations based on the creation-relaxation algorithm, we explore the evolution of microstructure in irradiated zirconium over a broad range of radiation exposure. In agreement with experimental observations, we find that at relatively low temperatures, microstructure evolves towards an asymptotic dynamic steady state forming at…
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