authors |
Serdechnova, M; Mohedano, M; Kuznetsov, B; Mendis, CL; Starykevich, M; Karpushenkov, S; Tedim, J; Ferreira, MGS; Blawert, C; Zheludkevich, ML |
nationality |
International |
journal |
JOURNAL OF THE ELECTROCHEMICAL SOCIETY |
keywords |
PLASMA ELECTROLYTIC OXIDATION; LAYERED DOUBLE HYDROXIDES; ALUMINUM-ALLOY; CORROSION PROTECTION; CERAMIC COATINGS; ORGANIC COATINGS; HYDROTALCITE; INHIBITION; INTERCALATION; PARAMETERS |
abstract |
In the present work, for the first time Zn-Al layered double hydroxide (LDH) nanocontainers were grown in-situ on the surface and in the pores of plasma electrolytic oxidation (PEO) layer and then loaded with a corrosion inhibitor to provide active protection. The developed LDH-based conversion process ensures partial sealing of the pores and provides an effective corrosion inhibition on demand leading to increased fault-tolerance and self-healing properties. The structure, morphology and composition of the LDH-sealed PEO coatings on 2024 aluminum alloy were investigated using SEM, TEM/FIB, XRD and GDOES. Electrochemical impedance spectroscopy and scanning vibrating electrode techniques show a remarkable increase in the corrosion resistance and fault tolerance when PEO coating is sealed with a LDH-inhibitor treatment. (C) The Author(s) 2016. Published by ECS. All rights reserved. |
publisher |
ELECTROCHEMICAL SOC INC |
issn |
0013-4651 |
isbn |
1945-7111 |
year published |
2017 |
volume |
164 |
issue |
2 |
beginning page |
C36 |
ending page |
C45 |
digital object identifier (doi) |
10.1149/2.0301702jes |
web of science category |
Electrochemistry; Materials Science, Coatings & Films |
subject category |
Electrochemistry; Materials Science |
unique article identifier |
WOS:000397850800019
|