Controlling the electrodeposition, morphology and structure of hydroxyapatite coating on 316L stainless steel

Hydroxyapatite (HAp) coatings were prepared on 316L stainless steel (316LSS) substrates by electrochemical deposition in the solutions containing Ca(NO3)2·4H2O and NH4H2PO4 at different electrolyte concentrations. Along with the effect of precursor concentration, the influence of temperature and H2O...

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Bibliographic Details
Published in:Materials Science & Engineering C 2013-05, Vol.33 (4), p.2037-2045
Main Authors: Thanh, Dinh Thi Mai, Nam, Pham Thi, Phuong, Nguyen Thu, Que, Le Xuan, Anh, Nguyen Van, Hoang, Thai, Lam, Tran Dai
Format: Article
Language:English
Subjects:
316L stainless steel
Austenitic stainless steels
Coated Materials, Biocompatible - chemistry
Coating
Concentration (composition)
Durapatite - chemistry
Electricity
Electrochemical measurements
Electrodeposition
Electrodes
Electrolytes - chemistry
Electroplating - methods
Heat resistant steels
Hydrogen Peroxide - chemistry
Hydroxyapatite
Hydroxyapatite (HAp)
Microscopy, Electron, Scanning
Molecular Weight
Morphology
Scanning electron microscopy
Simulated body fluid (SBF)
Solutions
Spectra
Spectrometry, X-Ray Emission
Spectroscopy, Fourier Transform Infrared
Stainless Steel - chemistry
Stainless steels
Temperature
Time Factors
X-Ray Diffraction
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Summary:Hydroxyapatite (HAp) coatings were prepared on 316L stainless steel (316LSS) substrates by electrochemical deposition in the solutions containing Ca(NO3)2·4H2O and NH4H2PO4 at different electrolyte concentrations. Along with the effect of precursor concentration, the influence of temperature and H2O2 content on the morphology, structure and composition of the coating was thoroughly discussed with the help of X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectra. The in vitro tests in simulated body fluids (SBF) were carried out and then the morphological and structural changes were estimated by SEM and electrochemical techniques (open circuit potential, polarization curves, Nyquist and Bode spectra measurements). Being simple and cost-effective, this method is advantageous for producing HAp implant materials with good properties/characteristics, aiming towards in vivo biomedical applications. ► Successful electrodeposition of HAp on 316L SS by a simple method ► The influence of some key parameters on the HAP morphology was discussed. ► Morphological and structural changes of HAP layer in SBF were thoroughly investigated.
ISSN:0928-4931
1873-0191
DOI:10.1016/j.msec.2013.01.018