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Antifouling properties of micro arc oxidation coatings containing Cu2O/ZnO nanoparticles on Ti6Al4V
- Source :
- International Journal of Refractory Metals and Hard Materials. 54:417-421
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- Micro arc oxidation (MAO), as a new special surface treatment method, has been introduced to the marine antifouling field for titanium alloys because of the anatase and rutile TiO 2 with antibacterial effects obtained during the oxidation process. Despite this, metallic oxide antifouling additives have been added into MAO coatings to improve the antibacterial and antifouling abilities of titanium alloy. In this study, MAO coatings containing nanometer particles were obtained by adding nano Cu 2 O and nano ZnO into the electrolyte. Structure, morphology, phase constitution and chemical composition of the MAO coating film were studied by SEM, XRD and EDS. The antibacterial properties of the film were evaluated by exposing the specimens to Escherichia coli and comparing the Ti-MAO and Ti-bared controls. The results showed that the MAO process on Ti6Al4V has an outstanding antibacterial property which can be further enhanced by nano Cu 2 O and nano ZnO. The Ti-MAO–Cu 2 O group had the best antibacterial ability. These findings indicate that by means of this process adding nanometer metallic oxide into an MAO coating film via an electrolyte is useful for enhancing the antibacterial and antifouling abilities of titanium.
- Subjects :
- Anatase
Materials science
Metallurgy
technology, industry, and agriculture
Oxide
chemistry.chemical_element
Titanium alloy
02 engineering and technology
engineering.material
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
chemistry
Coating
Chemical engineering
Rutile
Nano
engineering
Nanometre
0210 nano-technology
Titanium
Subjects
Details
- ISSN :
- 02634368
- Volume :
- 54
- Database :
- OpenAIRE
- Journal :
- International Journal of Refractory Metals and Hard Materials
- Accession number :
- edsair.doi...........7a263ceac7eeac2250bab2ecbac3ed76