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oai:docta.ucm.es:20.500.14352/191802023-08-27T01:20:54Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Serdechnova, Maria author Mohedano Sánchez, Marta author Bouali, Anissa author Höche, Daniel author Kuznetsov, Boris author Karpushenkov, Sergey author Blawert, Carsten author Zheludkevich, Mikhail author 2017-11-06 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. 2079-6412 10.3390/coatings7110190 https://hdl.handle.net/20.500.14352/19180 https://doi.org/10.3390/coatings7110190 https://www.mdpi.com/2079-6412/7/11/190 Role of Phase Composition of PEO Coatings on AA2024 for In-Situ LDH Growth