Figure 3
Diagrammatic sketch of the solid (white) expansion method is shown in panels (a) to (d). Panel (a) shows the starting geometry, which is a well-connected pore. Panels (b) to (c) show the isolated pore(s) is/are formed upon the numerical expansion of the solid phase. The red arrows in panels (b) to (d) point to the isolated pores formed by closing of the pore throats. Panel (e) is the plot of the percentage of the solid volume over the entire 3D space as a function of the solid layer expansion. Panel (f) is the plot of the number of isolated pores versus the number of voxel layers expanded numerically. The error bar is the standard deviation of the data from more than 70 of the 3D matrices.
