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Fig. 8 | Materials Theory

Fig. 8

From: Modeling mesoscale fission gas behavior in UO2 by directly coupling the phase field method to spatially resolved cluster dynamics

Fig. 8

The impact of temperature on the fission gas behavior in a 20 μm × 20 μm 2D polycrystal of UO2 with ten initial grains. The final microstructure (after 1389 days) for the clustering but no re-solution case and for the clustering and re-solution case at 1000 K is shown in (a) and (b), respectively. The final microstructure for the clustering but no re-solution case and for the clustering and re-solution case at 1800 K is shown in (c) and (d), respectively. The images are shaded by the local Xe molar fraction and the interfaces are shown in black. The evolution of the intergranular bubble fraction over time for the two temperatures is shown in (e). The fraction of Xe found within the grains over time for the two temperatures is shown in (f)

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