Figure 4From: High loading of nanostructured ceramics in polymer composite thick films by aerosol depositionSurface and cross-sectional SEM images. The surface and cross-sectional SEM images of the Al2O3-polyimide composite thick films with different mixing ratios for the polyimide in the starting powder: (a) and (b) show the 4 vol.% composite, (c) and (d) show the 8 vol.% composite, and (e) and (f) show the 12 vol.% composite.Back to article page