Next Article in Journal
A Way to Predict Gold Nanoparticles/Polymer Hybrid Microgel Agglomeration Based on Rheological Studies
Next Article in Special Issue
Fibrillar Self-Assembly of a Chimeric Elastin-Resilin Inspired Engineered Polypeptide
Previous Article in Journal
Experiment and Simulation of a Selective Subwavelength Filter with a Low Index Contrast
Previous Article in Special Issue
Biocompatible and Biodegradable Magnesium Oxide Nanoparticles with In Vitro Photostable Near-Infrared Emission: Short-Term Fluorescent Markers
Open AccessArticle

The Preparation and Properties of Multilayer Cu-MTa2O5 Composite Coatings on Ti6Al4V for Biomedical Applications

1
School of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, China
2
School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
3
School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
4
Zhuzhou Institute of Food and Drug Control, Zhuzhou 412008, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1498; https://doi.org/10.3390/nano9101498
Received: 19 September 2019 / Revised: 13 October 2019 / Accepted: 18 October 2019 / Published: 21 October 2019
(This article belongs to the Special Issue Advanced Biocompatible Nanomaterials)
For the enhancement of the anticorrosion and antibacterial performance of the biomedical alloy Ti6Al4V, a novel Cu incorporated multilayer Ta2O5ceramic composite coating Cu-Ta2O5/Ta2O5/Ta2O5-TiO2/TiO2/Ti (coating codeCu-MTa2O5) was developed by radio frequency (RF) and direct current (DC) reactive magnetron sputtering. Meanwhile, to better display the multilayer Ta2O5 coating mentioned above, a monolayer Ta2O5 ceramic coating was deposited onto the surface of Ti6Al4V alloy as a reference. The surface morphology, microstructure, phase constituents, and elemental states of the coating were evaluated by atomic force microscopy, scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy, respectively. The adhesion strength, wettability, anticorrosion and antibacterial properties of the coating were examined by a scratch tester, contact angle measurement, electrochemical workstations, and plate counting method, respectively. The results showed that the deposited coatings were amorphous and hydrophobic. Cu doped into the Ta2O5 coating existed as CuO and Cu2O. A Ta2O5-TiO2/TiO2/Ti multi-interlayer massively enhanced the adhesion strength of the coating, which was 2.9 times stronger than that of the monolayer Ta2O5coating. The multilayer Cu-MTa2O5 coating revealed a higher corrosion potential and smaller corrosion current density as compared to the uncoated Ti6Al4V, indicating the better anticorrosion performance of Ti6Al4V. Moreover, a 99.8% antibacterial effect of Cu-MTa2O5 coated against Staphylococcus aureuswas obtained. View Full-Text
Keywords: copper; Ta2O5; ceramic coating; Ti6Al4V; magnetron sputtering copper; Ta2O5; ceramic coating; Ti6Al4V; magnetron sputtering
Show Figures

Graphical abstract

MDPI and ACS Style

Ding, Z.; Wang, Y.; Zhou, Q.; Ding, Z.; Wu, Y.; Zhu, Y.; Shi, W.; He, Q. The Preparation and Properties of Multilayer Cu-MTa2O5 Composite Coatings on Ti6Al4V for Biomedical Applications. Nanomaterials 2019, 9, 1498.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop