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Effect of Ultrasonic Vibration on Microstructure and Antifouling Capability of Cu-Modified TiO 2 Coating Produced by Micro-Arc Oxidation.
- Source :
- Coatings (2079-6412); Apr2024, Vol. 14 Issue 4, p376, 16p
- Publication Year :
- 2024
-
Abstract
- Ti and its alloys have received wide attention in marine engineering. However, the limited anti-biofouling capability may hinder their wide application. In the present work, micro-arc oxidation (MAO) with and without the introduction of ultrasonic vibration (UV) has been conducted on metallic Ti substrate in an aqueous solution containing Na<subscript>2</subscript>Cu-EDTA to produce a Cu-modified TiO<subscript>2</subscript> coating. Microstructural characterization reveals that the introduction of UV increased the thickness of the coating (ranging from ~13.5 μm to ~26.2 μm) compared to the coating (ranging from ~8.1 μm to ~12.8 μm) without UV. A relatively higher Cu content (~2.13 wt.%) of the coating with UV relative to the coating (~1.39 wt.%) without UV indicates that UV enhances the incorporation of Cu into TiO<subscript>2</subscript>. Further, both electrochemical properties and the response to sulfate-reducing bacteria (SRB) were evaluated, revealing that UV introduction endows Cu-modified TiO<subscript>2</subscript> coating with enhanced corrosion resistance and antifouling capability. The present results suggest that ultrasound-auxiliary micro-arc oxidation (UMAO) obviously enhances the surface performance of Ti alloys for promising applications in marine engineering. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20796412
- Volume :
- 14
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Coatings (2079-6412)
- Publication Type :
- Academic Journal
- Accession number :
- 176905998
- Full Text :
- https://doi.org/10.3390/coatings14040376