Fig. 9
From: Nanoengineered t-ZrO2 coatings for superior corrosion resistance on steel surfaces

AFM images of (a) Polished Carbon Steel (b) CS immersed in the 1 M H2SO4 solution (c) Carbon steel + 1 M H2SO4 + 200 ppm of 0.2 M t-ZrO2 NPs.
From: Nanoengineered t-ZrO2 coatings for superior corrosion resistance on steel surfaces

AFM images of (a) Polished Carbon Steel (b) CS immersed in the 1 M H2SO4 solution (c) Carbon steel + 1 M H2SO4 + 200 ppm of 0.2 M t-ZrO2 NPs.