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PEO coating on Mg-Ag alloy: The incorporation and release of Ag species.
- Source :
- Journal of Magnesium & Alloys; Jun2023, Vol. 11 Issue 6, p2182-2195, 14p
- Publication Year :
- 2023
-
Abstract
- In the present study, the distribution of Ag in the coating formed on Mg-Ag alloy by plasma electrolytic oxidation (PEO) and its ionic release kinetics when exposed to a 0.9 wt.% NaCl solution at 37 °C have been investigated. Both metallic Ag and Ag oxide particles with ∼5 to ∼40 nm in diameters were observed in the PEO coating. Further, an Ag-enriched layer of ∼20 nm in thickness at the substrate/coating interface was also observed. The PEO coating on the Mg-Ag alloy not only increases its corrosion resistance with the corrosion current density decreasing by up to 3 orders of magnitude from 8.04 × 10<superscript>−3</superscript> to 4.03 × 10<superscript>−6</superscript> A/cm<superscript>2</superscript>, but also controls the release of Ag<superscript>+</superscript> to the level that is sufficient for anti-infective efficacy without causing cytotoxicity to mammal cells. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22139567
- Volume :
- 11
- Issue :
- 6
- Database :
- Supplemental Index
- Journal :
- Journal of Magnesium & Alloys
- Publication Type :
- Academic Journal
- Accession number :
- 169752823
- Full Text :
- https://doi.org/10.1016/j.jma.2021.12.006