Bioceramic Coating Produced on AZ80 Magnesium Alloy by One-Step Microarc Oxidation Process
Bioceramic Coating Produced on AZ80 Magnesium Alloy by One-Step Microarc Oxidation Process
复制标题
一步微弧氧化工艺在AZ80镁合金上制备生物陶瓷涂层
DOI：
10.1007/s11665-019-03925-3
复制
发表时间：
2019-02
影响因子：
2.3
通讯作者：
Song Renguo
中科院分区：
文献类型：
--
作者：
Xiong Ying;Yang Zengyuan;Hu Xiaxia;Song Renguo
在HA纳米粒子和K2TiF6存在下，在碱性硅酸盐溶液中通过一步微弧氧化（MAO）在AZ80镁合金上制备了自密封生物陶瓷涂层。研究了氧化时间对显微组织和耐腐蚀性能的影响。通过扫描电子显微镜对涂层的表面和截面形貌进行表征，并分别通过X射线衍射分析和能谱分析获得其相结构和化学成分。通过模拟体液中的电化学测量来评估涂层的腐蚀行为。结果表明，自封闭生物陶瓷涂层主要由MgO、MgF2、Ti3O5、Mg2SiO4和HA相组成，有效提高了AZ80镁合金的耐腐蚀性能。添加的K2TiF6在产生自密封涂层中起着关键作用，而HA纳米颗粒则提高了涂层的生物活性。因此，通过一步MAO工艺获得的自密封生物陶瓷涂层可能发展成为一种适合临床应用的骨植入物的表面处理技术。
A self-sealing bioceramic coating was prepared on AZ80 magnesium alloy by one-step microarc oxidation (MAO) in an alkaline silicate solution in the presence of HA nanoparticles and K2TiF6. The influence of oxidation time on the microstructure and corrosion resistance was investigated. The surface and cross-sectional morphologies of the coatings were characterized by scanning electron microscopy, while their phase structure and chemical composition were obtained by x-ray diffraction analysis and energy-dispersive spectroscopy, respectively. The corrosion behavior of the coatings was evaluated by electrochemical measurements in a simulated body fluid. The results show that the self-sealing bioceramic coatings are mainly composed of MgO, MgF2, Ti3O5, Mg2SiO4, and HA phases, which effectively improve the corrosion resistance of the AZ80 magnesium alloy. The added K2TiF6plays a key role in producing self-sealing coating, while the HA nanoparticles improve the bioactivity of the coating. Thus, the self-sealing bioceramic coating obtained by the one-step MAO process may develop into a suitable surface treatment technology for bone implants in clinical application.
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DOI：
10.17838/korcla.2009..35.011
发表时间：
2009-06
期刊：
--
影响因子：
--
作者：
Lim Chi-kyun
通讯作者：
Lim Chi-kyun
微弧氧化与电泳沉积相结合在ZK60镁合金上制备n-MAO/EPD生物陶瓷复合涂层
影响因子：
6.7
作者：
Xiong, Ying;Lu, Chao;Wang, Chao;Song, Renguo
通讯作者：
Song, Renguo
影响因子：
6.7
作者：
Huijun Yu;Q. Dong;J. Dou;Yaokun Pan;Chuanzhong Chen
通讯作者：
Huijun Yu;Q. Dong;J. Dou;Yaokun Pan;Chuanzhong Chen
影响因子：
3
作者：
Yichuan Pan;D. Wang;Chuanzhong Chen
通讯作者：
Yichuan Pan;D. Wang;Chuanzhong Chen
影响因子：
3
作者：
Taozhou Zhang;Xiaona Wu;Hua-yang Huang;Yu Zhang;Mei Li;Guobo Lan;Hong Xia;Qing‐shui Yin
通讯作者：
Taozhou Zhang;Xiaona Wu;Hua-yang Huang;Yu Zhang;Mei Li;Guobo Lan;Hong Xia;Qing‐shui Yin