Fig.1-27 External appearance and cross section of the simulated debris

Fig.1-27 External appearance and cross section of the simulated debris

Photos (a) and (b) show the appearance of simulated debris samples with ZrO2 contents of 10 and 65mol%, respectively. Photos (c) and (d) show the respective cross-sectional images of these samples. ZrO2 content represents the cladding tube component. There are no defects, such as cracks in the external surface. The portion that is visible in the spotty pattern shows the grain boundary in the cross section. These grain sizes are 10-40 μm.

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