Fig. 2: Investigation of Interfacial Interactions Between UFG/PEI Nanocomposite Coatings and AA 7075 Substrates. | npj Materials Degradation

Fig. 2: Investigation of Interfacial Interactions Between UFG/PEI Nanocomposite Coatings and AA 7075 Substrates.

From: Mechanistic origins of corrosion protection of aluminum alloys by graphene/polyetherimide nanocomposite coatings

Fig. 2

a ToF-SIMS depth profile illuminating strong Al—O signals at the metal/coating interface; XANES spectra acquired at (b) oxygen and (c) carbon K-edges for PEI, PEI interfaced with Al flakes, and the Al flakes to investigate the binding mechanisms between the PEI and aluminum substrate. Peak assignments are noted in the spectra and are further discussed in the text.

Back to article page