Fig. 5 | Nature Communications

Fig. 5

From: Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials

Fig. 5

Visualization of the phase front propagation at a selected localized region. The isosurface develops as thresholding Ni K-edge energy value is changed: a 8339 eV, b 8339.5 eV, c 8340 eV, and d 8340.5 eV. The evolution of the isosurface shows the propagation of the reaction front of the Ni reduction upon heating. The isosurface is color coded to the local curvature with red and blue showing positive and negative curvatures, respectively. The white arrow in (b) points to a neck region (see text). The scale bar is 1 μm

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