Studying the Effects of Adding Silica Sand Nanoparticles on Epoxy Based Composites

Figure 5

Fracture surface analysis of pure epoxy, epoxy-SiO₂ nanoparticles composites with (a) pure, (b) 5 wt.% SiO₂, (c) 10 wt.% SiO₂, (d) 15 wt.% SiO₂, (e) 20 wt.% SiO₂.

(a)

(b)

(c)

(d)

(e)