Fig. 3: Visualization of four material phases (CGO, CFO, EP1, and EP2). | Communications Materials

Fig. 3: Visualization of four material phases (CGO, CFO, EP1, and EP2).

From: Three-dimensional imaging of grain boundaries via quantitative fluorescence X-ray tomography analysis

Fig. 3: Visualization of four material phases (CGO, CFO, EP1, and EP2).

a 3D view of segmented phases. b 2D cross-sectional slice through the two arrows shown in a. c Emergent phases with a grayscale map of Gd/(Gd + Fe) corresponding to the cross-sectional slice in b. Note that some grains such as P1 and C exhibit dramatic concentration gradients. d–f Enlarged grayscale map of Gd/(Gd + Fe) around EP1 and EP2 grains. White and red arrows indicate the diffusion path for Gd and Fe from the neighboring CGO and CFO phases to emergent phases, EP1 and EP2. g Grayscale concentration map of Gd/(Gd + Fe) in the parent phases (CGO and CFO) adjacent to the emergent phase grain C and P3. The Fe color map indicates the Fe concentration in CFO, and the Gd color map shows the Gd concentration in CGO. The parent phases also show higher Gd and Fe local concentrations in the interfacial regions, as indicated by the red and white arrows. Note that for d–g, the “rainbow” color scheme adapted from c applies to EP1 and EP2 particles only.

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