Fig. 1: Electron micrographs of bulk Mn-doped UO2 and a single crystal extracted from the parent material. | Communications Materials

Fig. 1: Electron micrographs of bulk Mn-doped UO2 and a single crystal extracted from the parent material.

From: The role of redox and structure on grain growth in Mn-doped UO2

Fig. 1: Electron micrographs of bulk Mn-doped UO2 and a single crystal extracted from the parent material.

BSE (a, e) and EDS (bd, fh) U L-, O K- and Mn K-edge images of Mn-doped UO2 pellets (top) with 2000 ppm addition as Mn shown comparatively with a single crystal grain (bottom) extracted from the same material. Note the lack of impurity grains and excess Mn additions on the surface of the single crystal grain, particularly in void regions, compared to the pellet. The dark spots in the single crystal grain BSE are due to voids and note the shadow effect from EDS present in the U L-, O K- and Mn K-edges.

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