Figure 4From: Preparation and Characterization of Silica/Polyamide-imide Nanocomposite Thin FilmsFracture surface micrographs of a pure PAI and silica/PAI nanocomposite with the amount of silica to PAI, b 2 wt%, c 4 wt%, d 6 wt%, e 8 wt%, f 10 wt%Back to article page