Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7893446 | Corrosion Science | 2018 | 49 Pages |
Abstract
A composite coating was produced via (i) plasma electrolytic oxidation (PEO) with Ce salt sealing, on which layered double hydroxides (LDHs) were deposited via a hydrothermal treatment, and (ii) then modified by phytic acid (PA) via an ion-exchange reaction. The final coating (characterized using XRD, XPS, FT-IR, SEM, EDS and GDOES) consisted of LDHs/Mg(OH)2/CeO2/Ce(OH)3 with a non-uniform Ce distribution. The corrosion protection and self-healing ability were investigated using polarization curves, EIS, immersion tests and SVET. The composite coating modified with PA showed the most superior corrosion protection and self-healing ability, attributed to the synergistic effect between Ce species and phosphate.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Gen Zhang, Liang Wu, Aitao Tang, Yanlong Ma, Guang-Ling Song, Dajiang Zheng, Bin Jiang, Andrej Atrens, Fusheng Pan,