Fabrication and Performance of ZnO Doped Tantalum Oxide Multilayer Composite Coatings on Ti6Al4V for Orthopedic Application

Ti6Al4V titanium alloy has been widely used as medical implant material in orthopedic surgery, and one of the obstacles preventing it from wide use is toxic metal ions release and bacterial implant infection. In this paper, in order to improve corrosion resistance and antibacterial performance of Ti6Al4V titanium alloy, ZnO doped tantalum oxide (TaxOy) multilayer composite coating ZnO-TaxOy/TaxOy/TaxOy-TiO2/TiO2/Ti (ZnO-TaxOy) was deposited by magnetron sputtering at room temperature. As a comparison, monolayer TaxOy coating was prepared on the surface of Ti6Al4V alloy. The morphology and phase composition of the coatings were investigated by field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD), the elemental chemical states of coating surfaces were investigated by X-ray photoelectron spectroscope (XPS). The adhesion strength and corrosion resistance of the coatings were examined by micro-scratch tester and electrochemical workstations, respectively. The results show that the adhesion strength of multilayer ZnO-TaxOy coating is 16.37 times higher than that of single-layer TaxOy coating. The ZnO-TaxOy composite coating has higher corrosion potential and lower corrosion current density than that of TaxOy coating, showing better corrosion inhibition. Furthermore, antibacterial test revealed that multilayer ZnO-TaxOy coating has a much better antibacterial performance by contrast.

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Composite Coatings of Chromium and Nanodiamond Particles on Steel

Archives of Metallurgy and Materials ◽

10.1515/amm-2017-0356 ◽

2017 ◽

Vol 62 (4) ◽

pp. 2421-2424 ◽

Cited By ~ 1

Author(s):

N. Gidikova ◽

M. Sulowski ◽

V. Petkov ◽

R. Valov ◽

G. Cempura

Keyword(s):

Wear Resistance ◽

Corrosion Resistance ◽

Composite Coating ◽

Composite Coatings ◽

Machine Building ◽

Chromium Coating ◽

Detonation Synthesis ◽

Micro Structure ◽

X Ray ◽

Average Size

AbstractChrome plating is used to improve the properties of metal surfaces like hardness, corrosion resistance and wear resistance in machine building. To further improve these properties, an electrodeposited chromium coating on steel, modified with nanodiamond particles is proposed. The nanodiamond particles (average size 4 nm measured by TEM) are produced by detonation synthesis (NDDS). The composite coating (Cr+NDDS) has an increased thickness, about two times greater microhardness and finer micro-structure compared to that of unmodified chromium coating obtained under the same galvanization conditions. In the microstructure of specimen obtained from chrome electrolyte with concentration of NDDS 25 g/l or more, “minisections” with chromium shell were found. They were identified by metallographic microscope and X-ray analyser on etched section of chromium plated sample. The object of further research is the dependence of the presence of NDDS in the composite coating from the nanodiamond particles concentration in the chroming electrolyte.

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

Nanomaterials ◽

10.3390/nano9101498 ◽

2019 ◽

Vol 9 (10) ◽

pp. 1498 ◽

Cited By ~ 1

Author(s):

Zeliang Ding ◽

Yi Wang ◽

Quan Zhou ◽

Ziyu Ding ◽

Yiyong Wu ◽

...

Keyword(s):

Adhesion Strength ◽

Photoelectron Spectroscopy ◽

Composite Coatings ◽

Antibacterial Properties ◽

Corrosion Current ◽

Contact Angle Measurement ◽

Angle Measurement ◽

X Ray ◽

Force Microscopy ◽

Antibacterial Performance

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.

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Microstructure, Wettability, Corrosion Resistance and Antibacterial Property of Cu-MTa2O5 Multilayer Composite Coatings with Different Cu Incorporation Contents

Biomolecules ◽

10.3390/biom10010068 ◽

2019 ◽

Vol 10 (1) ◽

pp. 68 ◽

Cited By ~ 2

Author(s):

Zeliang Ding ◽

Yi Wang ◽

Quan Zhou ◽

Ziyu Ding ◽

Jun Liu ◽

...

Keyword(s):

Corrosion Resistance ◽

Composite Coating ◽

Antibacterial Property ◽

Composite Coatings ◽

Antibacterial Properties ◽

Toxic Metal ◽

Ti6al4v Alloy ◽

Multilayer Composite ◽

Doping Amount ◽

Implant Surface

Bacterial infection and toxic metal ions releasing are the challenges in the clinical application of Ti6Al4V alloy implant materials. Copper is a kind of long-acting, broad-spectrum and safe antibacterial element, and Ta2O5 has good corrosion resistance, wear-resistance and biocompatibility, they are considered and chosen as a potential coating candidate for implant surface modification. In this paper, magnetron sputtering technology was used to prepare copper doped Ta2O5 multilayer composite coating Cu-Ta2O5/Ta2O5/Ta2O5-TiO2/TiO2/Ti (Cu-MTa2O5 for short) on Ti6Al4V alloy surface, for studying the effect of copper incorporation on the microstructure, wettability, anticorrosion and antibacterial activities of the composite coating. The results showed that Cu-MTa2O5 coating obviously improves the hydrophobicity, corrosion resistance and antibacterial property of Ti6Al4V alloy. In the coating, both copper and Ta2O5 exhibit an amorphous structure and copper mainly presents as an oxidation state (Cu2O and CuO). With the increase of the doping amount of copper, the grain size, roughness, and hydrophobicity of the modified surface of Ti6Al4V alloy are increased. Electrochemical experiment results demonstrated that the corrosion resistance of Cu-MTa2O5 coated Ti6Al4V alloy slightly decreased with the increase of copper concentration, but this coating still acts strong anticorrosion protection for Ti6Al4V alloy. Moreover, the Cu-MTa2O5 coating can kill more than 97% of Staphylococcus aureus in 24 h, and the antibacterial rate increases with the increase of copper content. Therefore, Cu-MTa2O5 composite coating is a good candidate for improving anticorrosion and antibacterial properties of Ti6Al4V alloy implant medical devices.

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Dual Synergistic Effects of MgO-GO Fillers on Degradation Behavior, Biocompatibility and Antibacterial Activities of Chitosan Coated Mg Alloy

Coatings ◽

10.3390/coatings12010063 ◽

2022 ◽

Vol 12 (1) ◽

pp. 63

Author(s):

Mohammad Zolfaghari Baghbaderani ◽

Somayeh Abazari ◽

Hamid Reza Bakhsheshi-Rad ◽

Ahmad Fauzi Ismail ◽

Safian Sharif ◽

...

Keyword(s):

Corrosion Resistance ◽

Composite Coating ◽

Synergistic Effects ◽

Composite Coatings ◽

Antibacterial Activities ◽

Mg Alloy ◽

Electrochemical Test ◽

E Coli ◽

Antibacterial Performance ◽

Biodegradable Magnesium

The aim of this work was to establish and characterize chitosan/graphene oxide- magnesium oxide (CS/GO-MgO) nanocomposite coatings on biodegradable magnesium-zinc-cerium (Mg-Zn-Ce) alloy. In comparison to that of pure CS coatings, all composite coatings encapsulating GO-MgO had better adhesion strength to the Mg-Zn-Ce alloy substrate. The result depicted that the co-encapsulation of GO-MgO into the CS layer leads to diminish of contact angle value and hence escalates the hydrophilic characteristic of coated Mg alloy. The electrochemical test demonstrated that the CS/GO-MgO coatings significantly increased the corrosion resistance because of the synergistic effect of the GO and MgO inside the CS coating. The composite coating escalated cell viability and cell differentiation, according to cytocompatibility tests due to the presence of GO and MgO within the CS. The inclusion of GO-MgO in CS film, on the other hand, accelerates the formation of hydroxyapatite (HA) during 14 days immersion in SBF. Immersion results, including weight loss and hydrogen evolution tests, presented that CS/GO-MgO coating enables a considerably reduced degradation rate of Mg-Zn-Ce alloy when compared to the bare alloy. In terms of antibacterial-inhibition properties, the GO-MgO/CS coatings on Mg substrates showed antibacterial activity against Escherichia coli (E. coli), with a large inhibition area around the specimens, particularly for the coating containing a higher concentration of GO-MgO. Bacterial growth was not inhibited by the bare Mg alloy samples. The CS/GO-MgO composite coating is regarded as a great film to enhance the corrosion resistance, bioactivity, and antibacterial performance of Mg alloy implants.

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Osteogenic Differentiation, Antibacterial Activity and Biocompatibility of Zinc Oxide Minerals Substituted Hydroxyapatite Composite Coating on Titanium Alloy for Electrodeposition Technique

Asian Journal of Chemistry ◽

10.14233/ajchem.2020.22822 ◽

2020 ◽

Vol 32 (10) ◽

pp. 2633-2638

Author(s):

C. Santha ◽

S. Sathishkumar ◽

S. Sivakumar ◽

C. Sridevi ◽

A. Kamaraj

Keyword(s):

Antibacterial Activity ◽

Titanium Alloy ◽

Osteogenic Differentiation ◽

Composite Coating ◽

Cell Lines ◽

Composite Coatings ◽

Osteoblastic Cell ◽

Electrodeposition Technique ◽

X Ray

In present work, ZnO/Ce, Ag-HAP composite coating on titanium alloy is developed using electrodeposition technique. The surface characteristics of composite coatings were investigated by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) equipped with energy dispersive X-ray analysis (EDAX). The synthesized composite coatings showed the better antibacterial activity. in vitro Cell viability and osteogenic differentiation of the coatings was also studied by MC3T3-E1 human osteoblastic cell lines. The composite coating was found to be non-toxic against MC3T3-E1 cell lines at different incubation day proved the excellent bioactive of these coatings.

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Nickel Based Coatings Containing TiN Nanoparticles Prepared by Ultrasonic-Electrodeposition Technology

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.543-547.3703 ◽

2014 ◽

Vol 543-547 ◽

pp. 3703-3706 ◽

Cited By ~ 1

Author(s):

Yong Wang ◽

Lei Zhang

Keyword(s):

Corrosion Resistance ◽

Corrosion Rate ◽

Composite Coating ◽

Composite Coatings ◽

X Ray Diffraction ◽

X Ray ◽

Xrd Study ◽

Tin Nanoparticles ◽

Metallurgical Structure ◽

Steel Substrates

In order to enhance the surface properties of steel substrates, nanoNi-TiN composite coatings were prepared using ultrasonic-electrodeposition technology in this paper. The effects of ultrasonic on composite coatings were studied. The X-ray diffraction (XRD) study had been utilized to detect the crystalline and amorphous characteristics of Ni-TiN composite coatings. The surface morphology and metallurgical structure of composite coatings were observed with scanning electron microscope (SEM). Finally the corrosion resistance was tested. The results show that the ultrasonic has greatly effects on TiN nanoparticles in composite coatings. And the introduction of ultrasonic and TiN particles cause the nickel grains to become fine. The average grain diameter of TiN particles is 30 nm. The Ni grain is measured approximately 60 nm. The test of corrosion resistance shows the nanoNi-TiN composite coating is proved with good corrosion resistance. The corrosion rate of 45 steel is about 5 times than that of Ni-TiN composite coating, and the corrosion rate of Ni coating is above thrice than that of Ni-TiN composite coating.

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The Deposition of Ni/Cr-Cr3C2 Composite Coatings by Arc-EB Hybrid Technology

Materials Science Forum ◽

10.4028/www.scientific.net/msf.674.71 ◽

2011 ◽

Vol 674 ◽

pp. 71-80 ◽

Cited By ~ 2

Author(s):

Jerzy Smolik ◽

Adam Mazurkiewicz

Keyword(s):

Electron Beam ◽

Composite Coating ◽

Arc Discharge ◽

Composite Coatings ◽

Chemical Compositions ◽

Multilayer Composite ◽

Substrate Bias Voltage ◽

Hybrid Technology ◽

Developed Surface ◽

The Creation

The new hybrid technology is a combination of electron beam evaporation and arcevaporation processes, enabling the creation of the anti-erosion multilayer composite coating Ni/Cr- Cr3C2 with different volume of Cr3C2 filling in soft Ni/Cr matrix. The soft matrix made of Ni/Cr alloy and hard filling of Cr3C2 are created at the same time and directly during the electron beam and arc-evaporation process. Changes of the parameters of the hybrid process, i.e. pressure, current of arc discharge and substrate bias voltage Ubias, make it possible to control the volume of Cr3C2 and are a factor in filling the soft Cr/Ni matrix with carbides Cr3C2. With the use of the developed surface treatment hybrid technology, the multilayer composite coating Ni/Cr-Cr3C2 were obtained. For all composite layers created, the material properties, such as morphology, phase and chemical compositions, hardness, and Young modulus were investigated. The paper presents the original technological equipment, methodology, and technological parameters for the creation of the composite coating Ni/Cr-Cr3C2.

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Experimental investigation of electrodeposited Ni-Al2O3/ZrO2 nano composite on HSLA ASTM A860 alloy

Surface Topography Metrology and Properties ◽

10.1088/2051-672x/ac396a ◽

2021 ◽

Author(s):

Chandrasekhara Sastry Chebiyyam ◽

Pradeep N ◽

Shaik AM ◽

Hafeezur Rahman A ◽

Sandeep Patil

Keyword(s):

Grain Size ◽

Corrosion Resistance ◽

Composite Coating ◽

Base Alloy ◽

Composite Coatings ◽

Nano Particles ◽

Alloy Sample ◽

Nano Composite ◽

Nano Coating ◽

Nano Composite Coating

Abstract Nano composite coatings on HSLA ASTM A860 alloy, adds to the barrier efficacy by increase in the microhardness, wear and corrosion resistance of the substrate material. Additionally, reduction of delamination of the nano composite coating sample is ascertained. Ball milling is availed to curtail the coating samples (Al2O3/ZrO2) to nano size, for forming a electrodeposited product on the substrate layer. The curtailment in grain size was ascertained to be 17.62% in Ni-Al2O3/ZrO2 nano composite coating. During the deposition process, due to the presence of Al2O3/ZrO2 nano particles an increase in cathode efficiency is ascertained. An XRD analysis of the nano composite coating indicates a curtailment in grain size along with increase in the nucleation sites causing a surge in the growth of nano coating layer. In correlation to uncoated HSLA ASTM A36 alloy sample, a surge in compressive residual stress by 47.14%, reduction of waviness by 32.14% (AFM analysis), upsurge in microhardness by 67.77% is ascertained in Ni-Al2O3/ZrO2 nano composite coating. Furthermore, in nano coated Ni-Al2O3/ZrO2 composite a reduction is observed pertaining to weight loss and friction coefficients by 27.44% and 13% in correlation to plain uncoated alloy respectively. A morphology analysis after nano coating indicates, Ni-Al2O3/ZrO2 particles occupy the areas of micro holes, reducing the wide gaps and crevice points inside the matrix of the substrate, enacting as a physical barrier to upsurge the corrosion resistance by 67.72% in correlation to HSLA ASTM A860 base alloy.

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Fabrication of an Apatite/Collagen Composite Coating on the NiTi Shape Memory Alloy through Electrochemical Deposition and Coating Characterisation

Materials Science Forum ◽

10.4028/www.scientific.net/msf.618-619.319 ◽

2009 ◽

Vol 618-619 ◽

pp. 319-323 ◽

Cited By ~ 5

Author(s):

Parama Chakraborty Banerjee ◽

Tao Sun ◽

Jonathan H.W. Wong ◽

Min Wang

Keyword(s):

Shape Memory Alloy ◽

Shape Memory ◽

Composite Coating ◽

Electrochemical Deposition ◽

Room Temperature ◽

Composite Coatings ◽

Deposition Process ◽

Niti Shape Memory Alloy ◽

X Ray ◽

Niti Sma

To improve the biocompatibility and bioactivity of NiTi shape memory alloy (SMA), apatite/collagen composite coatings were fabricated on the surface of NiTi SMA at room temperature using the electrochemical deposition technique. Spherical apatite particles and fibrous collagen that formed the composite coating were visible under scanning electron microscope (SEM). The Ca/P ratio of the apatite component in the coating, as determined by energy dispersive X-ray spectroscopy (EDX), was about 1.38 which is slightly higher than that of octocalcium phosphate (OCP). X-ray diffraction result showed that the apatite was amorphous, which was due to the low temperature (i.e., room temperature) deposition process. The structure of the composite coatings was further characterized using Fourier transform infrared reflection spectroscopy (FTIR). It was also found that, compared to bare NiTi SMA samples, the wettability of as-deposited samples was increased because of the formation of the composite coating.

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