747963.fig.007a
(a)
747963.fig.007b
(b)
747963.fig.007c
(c)
Figure 7: The SEM microphotographs of (a) GNSs (×30 k), (b) epoxy/m-GNSs 1% composites (×2 k) before combustion, and (c) epoxy/m-GNSs 1% composites (×1 k) after combustion.