Abstract
To improve the corrosion resistance and bioactivity, mesoporous 58S bioactive glass (58S MBG) coatings were prepared on AZ31 magnesium alloy via the sol–gel dip-coating method using Pluronic F127 (EO106PO70EO106) as pore-structure template. With the addition of F127, the glass transition temperature of 58S bioglass is significantly decreased to 385°C, much lower than that of sample without F127 additives. Immersion tests in simulated body fluid (SBF) revealed that 58S MBG coatings could effectively provide corrosion protection for magnesium (Mg) alloys on account of the stable barrier properties. Meanwhile, apatite is observed on coating surface after 3days immersion in SBF, suggesting that the mesoporous coatings could accelerate the apatite precipitation and thus improve the bioactivity of Mg alloy substrates. Furthermore, the formed apatite layer on sample surface also indirectly retards the biodegradation of Mg alloys to some extent.
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.
