Effect of chelating agent acetylacetone on corrosion protection properties of silane-zirconium sol-gel coatings

- AcAc was employed as a chelating agent in order to form stable sols.
- The sol particle size depends on the concentration of AcAc.
- AFM results indicate that AcAc content affects the morphology of the coatings.
- Coating AcAc3 shows the optimal corrosion protection.