Abstract
Two compositions of 58S (60 mol% SiO2, 36 mol% CaO, 4 mol% P2O5) glass coatings were made by sol-gel and applied by dip coating onto two commercial magnesium alloys (AZ31 and AZ91) as a strategy to retard the hydrogen evolution and accelerate the deposition of a hydroxyapatite layer to enhance bioactivity. Surface studies with x-ray photoelectron spectroscopy, Raman spectroscopy, and scanning electronic microscopy techniques are presented after coating deposition and after immersion in Hanks’ balanced salt solution (HBSS) at 37°C. Electrochemical tests were also conducted to evaluate the evolution of the coating with immersion. It is observed that even though the coating presents defects, it is able to retard substrate degradation, and this effect is more pronounced for AZ91 as substrate. Coating performance is mainly governed by the substrate because of defective nature of the film.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
