Category: Corrosion

Maximizing corrosion resistance of aerospace aluminium with self-healing coatings

~ Matheus A. Tunes ~ Leave a comment

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 … Continue reading Maximizing corrosion resistance of aerospace aluminium with self-healing coatings

Further improving the corrosion resistance of Al-based alloys for aerospace applications with Cr-free treatments

~ Matheus A. Tunes ~ Leave a comment

A great paper and research led by my friend Oscar M. Prada Ramirez recently shows that the corrosion resistance of aerospace grade Al-based alloys can be significantly improved using Ce-nanoparticles in an anodization treatment using tartaric-sulfuric acid environments! The aluminium alloy series 2xxx with its anodic layer filled with Ce nanoparticles! A pathway to reduce … Continue reading Further improving the corrosion resistance of Al-based alloys for aerospace applications with Cr-free treatments

Functionally Graded Materials for Fuel Cells Applications

~ Matheus A. Tunes ~ Leave a comment

Our paper on the corrosion resistance of constant and functionally graded TiN coatings is now online! In this paper we have discovery an interesting relationship between electron energy loss spectroscopy and corrosion resistance: functionally graded materials can be engineered so that they have a gradient of valence electrons along the coating profile. The less electrons … Continue reading Functionally Graded Materials for Fuel Cells Applications