Article ID Journal Published Year Pages File Type
1644920 Materials Letters 2013 5 Pages PDF
Abstract

•The bredigite coating was successfully prepared on a biodegradable magnesium alloy.•The bredigite coating enhanced the corrosion resistance of magnesium alloy.•The bredigite coating improved the in vitro bioactivity of magnesium alloy.

Magnesium and its alloys have been recently investigated as biodegradable metallic biomaterials for bone implants. However, rapid corrosion rate and low bioactivity have been two limiting factors for their biomedical applications. In this work we aimed to improve these two properties for AZ91 magnesium alloy using the nanostructured bredigite (Ca7MgSi4O16) coating made by micro-arc oxidation and electrophoretic deposition methods. The results indicated that this surface treatment enhanced both corrosion resistance and the bioactivity of AZ91 substrate, making it suitable for biomedical applications.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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