Electrochemical and Morphological Characterization of Silver Doped Bioceramic Layer on Metallic Implant Materials for Orthopaedic Application

Monika Furkó; Éva Fazakas; Enikő Réka Fábián; Csaba Balázsi

doi:10.4028/www.scientific.net/MSF.885.7

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Electrochemical and Morphological Characterization of Silver Doped Bioceramic Layer on Metallic Implant Materials for Orthopaedic Application
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HomeMaterials Science ForumMaterials Science Forum Vol. 885Electrochemical and Morphological Characterization...

Electrochemical and Morphological Characterization of Silver Doped Bioceramic Layer on Metallic Implant Materials for Orthopaedic Application

Abstract:

This study presents the production of silver doped bioactive calcium-phosphate (CaP) coatings on commonly used orthopaedic implant materials (Ti6Al4V). The deposition process was performed by pulse current technique from electrolyte containing the appropriate amount of Ca(NO₃)₂ and NH₄H₂PO₄ components at 70 °C. In order to modify the CaP layer, Ag⁺ ions were added to the base electrolyte. The electrochemical behaviour of the coatings was investigated by potentiodynamic polarization method in conventional Ringer’s solution in a three-electrode open cell. The corrosion properties of samples prepared with different parameters were compared. During immersion, the coating comes into contact with the electrolyte and corrosion occurs. Due to the potential difference between layer and the metallic substrate, discrete anodic and cathodic areas can be formed, which result in the release of silver and calcium ions. For antimicrobial applications of the modified CaP coated implant alloys, it is important to maintain a continuous release of silver ions, while the bioactive CaP layer enhance the biocompatibility properties of the layer by fostering the bone cell growth. The morphology and grain size of coatings as deposited have been investigated and confirmed by different methods such as Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray (EDX) analysis.

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Periodical:

Materials Science Forum (Volume 885)

Pages:

7-12

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.885.7

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Online since:

February 2017

Authors:

Monika Furkó*, Éva Fazakas, Enikő Réka Fábián, Csaba Balázsi

Keywords:

Bioactive Calcium Phosphate, Biomedical Implants, Hydroxyapatite, Pulse Plating Technique

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