Investigation of duty cycle effect on corrosion properties of electrodeposited calcium phosphate coatings
| Autor: | Ahmet Cakir, Guler Ungan, Funda Ak Azem, Tulay Koc Delice |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Calcium Phosphates
Materials science Scanning electron microscope Surface Properties chemistry.chemical_element Bioengineering 02 engineering and technology Bioceramic engineering.material 010402 general chemistry 01 natural sciences Corrosion Biomaterials Coating Coated Materials Biocompatible Implants Experimental Alloys Composite material Fourier transform infrared spectroscopy Titanium Metallurgy Titanium alloy 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Mechanics of Materials Conversion coating engineering 0210 nano-technology |
| Zdroj: | Materials scienceengineering. C, Materials for biological applications. 68 |
| ISSN: | 1873-0191 |
| Popis: | The bioceramic calcium phosphate (CaP) is frequently used for improving bone fixation in titanium medical implants and thus increasing lifetime of the implant. It is known that the application of CaP coatings on metallic implant devices offers the possibility of combining the strength of the metals and the bioactivity of the ceramic materials. Many different techniques are available for producing CaP coatings. Electrochemical deposition method is widely used because of its ease of operation parameters, low temperature requirement, reproducibility and suitability for coating complex structures. This technique allows obtaining CaP coatings which promote bone in growth during the first healing period leading to permanent fixation. Electrochemical pulse technique is an alternative to calcium phosphate deposition techniques usually employed to cover orthopedic or dental titanium implant surfaces. Additionally, pulse electrodeposition technique can produce more uniform and denser CaP coatings on metallic implants. In this study, CaP based coatings were produced by electrochemical pulse technique,on Ti6Al4V substrates. The resulting CaP deposits were investigated by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Corrosion properties of the CaP coatings were also investigated. The results showed that various duty cycle ranges have remarkably effect on morphology, crystallinity and corrosion properties of the produced CaP coatings. (C) 2016 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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