Fig. 39
Bode plots of impedance module and phase angle for AA2024 coated with sol–gel ZrO2 thin film in 0.05 MNaCl. The impedance measurement was carried out under voltage control (Reprinted from Prog Org Coatings, 69, Paussa L, Andreatta F, Aldighieri P, Fedrizzi L, Critical aspects in the electrochemical study of unstable coated metallic substrates, 225–234, Copyright (2010a), with permission from Elsevier)