The microstructure and mechanical properties of TiN and TiO2/TiN duplex films synthesized by plasma immersion ion implantation and deposition on artificial heart valve

被引：19
|
作者：
Leng, Y. X.
Chen, J. Y.
Yang, P.
Wang, J.
Zhao, A. S.
Wan, G. J.
Sun, H.
Huang, N. [1 ]
机构：
[1] SW Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Peoples R China
[2] SW Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2006年 / 201卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
titanium oxide film; titanium nitride film; duplex film; artificial heart valve; mechanical property; microstructure; BLOOD COMPATIBILITY; WEAR PERFORMANCE; IN-VIVO; TITANIUM; BIOMATERIALS; HEMOCOMPATIBILITY; CARBON;
D O I：
10.1016/j.surfcoat.2006.01.024
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Improving the blood compatibility of titanium alloy artificial heart valves by TiO2/TiN duplex films was studied. In the duplex TiO2/TiN film, the titanium oxide is for improving blood compatibility and the TiN film is mainly to improve the mechanical property of the films. The mechanical properties of TiN films synthesized by plasma immersion ion implantation and deposition at different bias voltages and substrate temperatures are studied. Its structure is examined using X-ray diffractometry and TEM. The fatigue property of the artificial heart valve modified by TiO2/TiN duplex film is also investigated. The fatigue property and the wear resistance of the artificial heart valve modified by TiO2/TiN duplex film are significantly improved compared with bare titanium alloy artificial heart valve. The present investigation shows that TiO2/TiN duplex film is suitable for applications such as artificial heart valve coating. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1012 / 1016
页数：5
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