Crystal structures of irradiated U-10Zr and U-10Zr-5Ce metallic fuels at approximately 2.9 at.% burnup were probed by micro-X-ray diffraction, which identified the presence of UO2 and α-U phases in both… Click to show full abstract
Crystal structures of irradiated U-10Zr and U-10Zr-5Ce metallic fuels at approximately 2.9 at.% burnup were probed by micro-X-ray diffraction, which identified the presence of UO2 and α-U phases in both fuels. Analysis of the lattice parameters of α-U phase region using Pawley refinement showed α-U lattice expansion in the b-axis direction, which was correlated with the irradiation growth of orthorhombic α-U. Furthermore, no FCCI and rim structure were observed in both irradiated metallic fuels.
               
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