In vitro degradation, wear property and biocompatibility of nano-Y2O3-containing micro-arc oxidation coating on ZK60 alloy

被引：16
作者：
Chen, Jun-xiu [1 ,2 ]
Yang, Yang [1 ,2 ]
Etim, Iniobong P. [3 ]
Tan, Li -li [3 ]
Yang, Ke [3 ]
Misra, R. D. K. [4 ]
Wang, Jian-hua [1 ,2 ]
Su, Xu-ping [1 ,2 ]
机构：
[1] Changzhou Univ, Key Lab Mat Surface Sci & Technol Jiangsu Prov, Changzhou 213164, Peoples R China
[2] Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & En, Changzhou 213164, Jiangsu, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
[4] Univ Texas, Dept Met Mat & Biomed Engn, El Paso, TX 79968 USA
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2023年 / 33卷 / 05期
基金：
中国国家自然科学基金;
关键词：
MAO coating; wear property; degradation resistance; biocompatibility; ZN-CA ALLOY; MAGNESIUM ALLOY; BONE RESPONSE; CORROSION; BEHAVIOR; RESISTANCE; SURFACE; VIVO;
D O I：
10.1016/S1003-6326(23)66192-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
In order to further improve the degradation resistance and wear property of micro-arc oxidation (MAO) coating on magnesium alloys, nano-Y2O3 was added into the electrolyte to fabricate a nano-Y2O3-containing MAO coating. Microstructural characterization, wear test, electrochemical test, immersion test and cytotoxicity test were carried out. The results showed that there were mainly Ca8MgY(PO4)7 and Y2O3 particles in the MAO coating. Ca8MgY(PO4)7 could stabilize the coating and the nano-Y2O3 could seal the micro-pores. Therefore, both the degradation resistance and wear property of the coating were improved. The degradation rate decreased from 0.14 to 0.06 mm/a in Hank's solution. The volume loss decreased from 0.46 to 0.27 mm3 at the same slip distance. MAO coating exhibited good biocompatibility with the cell relative growth rate (RGR) value of more than 90%. The nano-Y2O3-containing MAO coating thus has a good promising biomedical application.
引用
收藏
页码：1411 / 1424
页数：14
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