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Improved Mechanical Compatibility and Cytocompatibility of Ta/Ti Double-Layered Composite Coating
Ding, Ding1,2; Xie, Youtao1; Li, Kai1; Huang, Liping1; Zheng, Xuebin1
2017
发表期刊Journal of Thermal Spray Technology
ISSN10599630
卷号26期号:6页码:1292-1300
摘要In order to improve the mechanical compatibility and cytocompatibility of titanium implants, a composite coating with double layers composed of tantalum and titanium was designed and prepared using plasma spraying technology. In the composite coating, the upper tantalum layer provides a good biocompatibility, and the sublayer of titanium with a porous structure ensures the low elastic modulus. Results show that the fabricated composite coating exhibits a relatively low elastic modulus of 26.7 GPa, which is close to the elastic modulus of human cortical bone. In vitro cytocompatibility evaluation of the composite coating shows that the human bone marrow stromal cells exhibit enhanced adhesion and spreading performance on the double-layered composite coating in comparison with the single-layered titanium coating. In order to eliminate the misgivings of chemical stability of the composite coating in clinical application, electrochemical corrosion of the coating was examined. The results obtained revealed a very weak galvanic corrosion between the tantalum and titanium in the composite coating, which would ensure the safety of the coating in vivo. © 2017, ASM International.
DOI10.1007/s11666-017-0599-5
EI入藏号20172903965130
EI主题词Metal implants
EI分类号461.2 Biological Materials and Tissue Engineering - 461.9.1 Immunology - 542.3 Titanium and Alloys - 543.4 Tantalum and Alloys - 801 Chemistry - 813.2 Coating Materials - 932.3 Plasma Physics - 951 Materials Science
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25474
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing; 100049, China
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GB/T 7714
Ding, Ding,Xie, Youtao,Li, Kai,et al. Improved Mechanical Compatibility and Cytocompatibility of Ta/Ti Double-Layered Composite Coating[J]. Journal of Thermal Spray Technology,2017,26(6):1292-1300.
APA Ding, Ding,Xie, Youtao,Li, Kai,Huang, Liping,&Zheng, Xuebin.(2017).Improved Mechanical Compatibility and Cytocompatibility of Ta/Ti Double-Layered Composite Coating.Journal of Thermal Spray Technology,26(6),1292-1300.
MLA Ding, Ding,et al."Improved Mechanical Compatibility and Cytocompatibility of Ta/Ti Double-Layered Composite Coating".Journal of Thermal Spray Technology 26.6(2017):1292-1300.
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