Stochastic 3D modeling of La0.6Sr0.4CoO3−δ cathodes based on structural segmentation of FIB-SEM images

► Stochastic modeling of microstructures consisting of a completely connected solid phase. ► Structural segmentation of 3D images by sphere representation. ► Using relative neighborhood graph to assure complete connectivity of solid phase. ► Fitting parameters of 3D stochastic model to FIB-SEM images of LSC cathodes. ► Model validation by means of structural characteristics.