A novel biomedical TiN-embedded TiO2 nanotubes composite coating with remarkable mechanical properties,corrosion, tribocorrosion resistance,and antibacterial activity |
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| Affiliation: | 1. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China;2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China;3. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, PR China;4. Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China;1. University of Belgrade, Institute for Multidisciplinary Research, Center of Excellence for Green Technologies, Kneza Vi?eslava 1, 11030, Belgrade, Serbia;2. Biosense Institute, Center for Sensing Technologies, University of Novi Sad, Dr Zorana ?in?i?a 1, 21102, Novi Sad, Serbia;1. College of Chemistry, Fuzhou University, Fuzhou, 350108, PR China;2. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China;3. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, China;1. School of Energy and Materials, Shanghai Polytechnic University, Shanghai, 201209, PR China;2. Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, PR China;3. Thermo Fisher Scientific Inc, Shanghai, 200131, PR China;1. College of Electronic Information and Optical Engineering, Nankai University, Tianjin, 300350, China;2. Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin, 300350, China;3. School of Physics, Nankai University, Tianjin, 300350, China;4. School of Opto-electronic Information, University of Electronic Science and Technology, Chengdu, 610054, China;5. Engineering Research Center of Thin Film Optoelectronics Technology, Ministry of Education, Nankai University, Tianjin, 300350, China;1. Department of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore, M.P, 453552, India;2. Centre for Advanced Electronics, Indian Institute of Technology Indore, Simrol, Indore, M.P, 453552, India;1. School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing, 102206, China;2. Beijing Key Laboratory of Pollutant Monitoring and Control in Thermoelectric Production Process, North China Electric Power University, Beijing, 102206, China |
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| Abstract: | Tribocorrosion is a severe problem in dental implants, artificial joints, and other implants, and it will affect the long-term safety of the implants. To improve the deficiencies of titanium alloys, we combined physical vapor deposition technology and anodic oxidation to prepare TiN to embed TiO2 nanotube composite coatings (NTNTs-TiN). Results show that the hardness of the NTNTs-TiN composite coatings reaches 33.2 ± 0.6 GPa, and the grains of the composite coatings were further refined. The NTNTs-TiN coating has the smallest average coefficient of friction (0.22) during tribocorrosion. The tribocorrosion resistance of NTNTs-TiN coating in SBF is increased by ～44 and ～2 times compared with Ti6Al4V alloy and TiN coating, respectively. The capillarity effect of the lower contact angle of NTNTs-TiN can form a continuous water-lubrication film at the interface between the counter-ball and coating and produce a lubrication film composed of Ca, Mg, and P, which reduces the coefficient of friction significantly. The NTNTs/TiN composite coating exhibits the best synergistic effect of wear and corrosion. In addition, the NTNTs-TiN coating also exhibits excellent antimicrobial and corrosion properties, which provides a new solution for the long-term safe use of implants in the human body. |
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| Keywords: | TiN coating Multi-arc ion plating Corrosion Tribocorrosion Antibacterial activity |
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