The use of sol-gel coatings to increase the corrosion resistance of commercial aerospace aluminium alloys is the topic of our most-recent paper at Corrosion Science.
In combination with anodization treatment and the use of Ce nanoparticles to fill-in the pores of the anodic layer, we have observed that a post-treatment with sol-gel coatings further increases the corrosion resistance of the aerospace aluminium alloy AA2024-T3.
After anodization and the treatment with Ce nanoparticles (this latter previously studied by us in these two instances, here and here), the sol-gel coatings exhibited self-healing problems: upon self-inflicted damage, the sol-gel restored its original morphology, leading to self-healing, preventing corrosion to proceed towards the anodization layer. This is a property that deserves further scientific investigation, however, it shows potential to revolutionize the field of corrosion of functional alloys.
Access to our paper here (50 days free access): https://authors.elsevier.com/c/1hJ1l,FwixdnC
Access to our paper via subscription: https://doi.org/10.1016/j.corsci.2023.111330
Another great work from the almost Dr. Oscar Mauricio Prada Ramirez (Universidade of São Paulo and Montanuniversität Leoben)!
Materials at Extremes 