Fig. 5

X-ray diffraction computed tomography of fuel cell during the thermal cycling. Row 1: Red green blue (RGB) images showing the distribution of the main SOFC components during the thermal cycling test (red: YSZ, green: LSM and blue: NiO/Ni). Row 2: the Ni unit cell lattice parameter a maps during the thermal cycling test as derived from the Rietveld analysis of the corresponding XRD-CT data. The scale bar corresponds to 0.5 mm