Micro-arc oxidization of a novel Mg-1Ca alloy in three alkaline KF electrolytes: Corrosion resistance and cytotoxicity
Micro-arc oxidization of a novel Mg-1Ca alloy in three alkaline KF electrolytes: Corrosion resistance and cytotoxicity
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DOI：
10.1016/j.apsusc.2013.11.038
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发表时间：
2014-02-15
影响因子：
6.7
通讯作者：
Wei, S. C.
中科院分区：
文献类型：
--
作者：
Jia, Z. J.;Li, M.;Wei, S. C.
采用KF-硅酸盐（Si涂层）、KF-磷酸盐（P涂层）和KF-硅酸盐-磷酸盐（SiP涂层）电解液对新型Mg-1Ca（wt%）合金进行微弧氧化处理。采用扫描电子显微镜（SEM）、X射线光电子能谱（XPS）和X射线衍射仪（XRD）对微弧氧化膜的组织、成分和耐蚀性进行了研究。随后进行电化学分析和Hanks溶液中的浸泡试验以及针对MG 63细胞的体外毒性的MU测定。结果表明，三种微弧氧化膜均有助于提高基体的耐腐蚀性和细胞相容性，但P膜因其独特的微观结构和成分而优于其他两种膜。(C)2013爱思唯尔有限公司版权所有。
A newly-developed Mg-1Ca (wt%) alloy was treated by micro-arc oxidization (MAO) in KF-silicate- (Si coating), KF-phosphate- (P coating) and KF-silicate-phosphate (SiP coating) electrolytes. The microstructure, composition and corrosion resistance of the resultant MAO coatings were investigated using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffractometry (XRD). Electrochemical analysis and immersion test in Hanks' solution and MU assay for in-vitro toxicity against MG63 cells were subsequently carried out. Results showed that all the three MAO coatings contributed to the improvement of corrosion resistance and cytocompatibility of substrate; however, P coating outperformed the two others due to its specific microstructure and composition. (C) 2013 Elsevier B.V. All rights reserved.