Use of Silica Tubes as Nanocontainers for Corrosion Inhibitor Storage

Figure 5

Stereoscopic microscopy micrographs showing the presence of nanoporous SBA-15 particles over the coating paint (a) without particles, (b) 2.5%, (c) 5.0%, (d) 7.5%, and (e) 10% silica particles content system (10X, bar scale 300 μm).

(a)

(b)

(c)

(d)

(e)