Fig. 6: Imaging and analysis of a large noble metal phase particle (ε-phase) and surrounding liner.
From: Distribution of metallic fission-product particles in the cladding liner of spent nuclear fuel
(a) HAADF-STEM image of the FIB-TEM specimen of the ATM-109 fuel-clad region. (b, c) STEM-EDS point analysis on the noble metal metal nanoparticle and crystalline cubic ZrO2 matrix indicated by a yellow and green cross labeled in (a), respectively. (d, e) BF-TEM images of the metallic nanoparticle at increasing magnifications (the blue box outlines the magnified region). (f) Magnified lattice image and (g, h) selected area diffraction at two different tilts taken along B[210] and B[100]. (i) Lattice fringe image showing stacking faults and enlarged image (j) displaying the 5.74 Å corresponding to the (100) reflection in the metallic phase. The FFT of the lattice image is shown in (k) with the lattice directions b* [010] and c*[001] drawn on the image.
