Fabrication of thin film TiO2 nanotube arrays on Co-28Cr-6Mo alloy by anodization

被引：11
|
作者：
Ni, Jiahua [1 ]
Frandsen, Christine J. [2 ]
Noh, Kunbae [2 ]
Johnston, Gary W. [2 ]
He, Guo [1 ]
Tang, Tingting [3 ]
Jin, Sungho [2 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[2] Univ Calif San Diego, La Jolla, CA 92093 USA
[3] Shanghai Jiao Tong Univ, Sch Med, Shanghai Key Lab Orthopaed Implant, Shanghai Peoples Hosp 9, Shanghai 200011, Peoples R China
来源：
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2013年 / 33卷 / 03期
关键词：
TiO2; nanotube; CoCr alloy; Anodization; Next-generation orthopedic implant; TITANIA NANOTUBES; BIOMATERIALS; TOPOGRAPHY; ADHESION; OXIDE;
D O I：
10.1016/j.msec.2012.12.068
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
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 degrees C. Two different types of deposited film structures (Ti/Au/Ti trilayer and Ti monolayer), and two deposition temperatures (room temperature and 400 degrees 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. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：1460 / 1466
页数：7
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