Role of Phase Composition of PEO Coatings on AA2024 for In-Situ LDH Growth



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Serdechnova, Maria and Mohedano Sánchez, Marta and Bouali, Anissa and Höche, Daniel and Kuznetsov, Boris and Karpushenkov, Sergey and Blawert, Carsten and Zheludkevich, Mikhail (2017) Role of Phase Composition of PEO Coatings on AA2024 for In-Situ LDH Growth. Coatings, 7 (11). p. 190. ISSN 2079-6412

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Plasma electrolytic oxidation (PEO) is an environmentally friendly anodizing technique leading to the formation of a ceramic-like coatings under high-voltage discharges. Layered double hydroxides (LDHs) were grown directly on γ, α, and amorphous Al2O3 powders, respectively, in order to investigate the phase responsible for in-situ LDH growth on PEO coating. Furthermore, it is shown that LDH growth is limited by the high tortuosity of the PEO layer and the accessibility of Al(OH)−4 anions from the substrate covered with thin amorphous aluminum oxide, through the pores.

Item Type:Article
Uncontrolled Keywords:layered double hydroxides; plasma electrolytic oxidation; aluminum alloy
Subjects:Sciences > Chemistry > Chemical engineering
Sciences > Chemistry > Materials
ID Code:66159
Deposited On:14 Jun 2021 15:02
Last Modified:15 Jun 2021 08:10

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