通过阳极氧化法在 Co-28Cr-6Mo 合金上制备 TiO2 纳米管阵列薄膜。
Fabrication of thin film TiO2 nanotube arrays on Co-28Cr-6Mo alloy by anodization.
机构信息
State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
出版信息
Mater Sci Eng C Mater Biol Appl. 2013 Apr 1;33(3):1460-6. doi: 10.1016/j.msec.2012.12.068. Epub 2012 Dec 23.
Titanium oxide (TiO2) nanotube arrays were prepared by anodization of Ti/Au/Ti trilayer thin film DC sputtered onto forged and cast Co-28Cr-6Mo alloy substrate at 400 °C. Two different types of deposited film structures (Ti/Au/Ti trilayer and Ti monolayer), and two deposition temperatures (room temperature and 400 °C) were compared in this work. The concentrations of ammonium fluoride (NH4F) and H2O in glycerol electrolyte were varied to study their effect on the formation of TiO2 nanotube arrays on a forged and cast Co-28Cr-6Mo alloy. The results show that Ti/Au/Ti trilayer thin film and elevated temperature sputtered films are favorable for the formation of well-ordered nanotube arrays. The optimized electrolyte concentration for the growth of TiO2 nanotube arrays on forged and cast Co-28Cr-6Mo alloy was obtained. This work contains meaningful results for the application of a TiO2 nanotube coating to a CoCr alloy implant for potential next-generation orthopedic implant surface coatings with improved osseointegrative capabilities.
氧化钛（TiO2）纳米管阵列通过直流磁控溅射在 400°C 下在锻造和铸造的 Co-28Cr-6Mo 合金基底上沉积 Ti/Au/Ti 三层薄膜来制备。在这项工作中比较了两种不同的沉积膜结构（Ti/Au/Ti 三层和 Ti 单层）和两种沉积温度（室温与 400°C）。改变甘油电解质中氟化铵（NH4F）和 H2O 的浓度，以研究它们对在锻造和铸造 Co-28Cr-6Mo 合金上形成 TiO2 纳米管阵列的影响。结果表明，Ti/Au/Ti 三层薄膜和高温溅射薄膜有利于形成有序的纳米管阵列。获得了在锻造和铸造 Co-28Cr-6Mo 合金上生长 TiO2 纳米管阵列的最佳电解质浓度。这项工作对于将 TiO2 纳米管涂层应用于 CoCr 合金植入物具有重要意义，为具有增强的骨整合能力的下一代骨科植入物表面涂层提供了可能。
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