Electrophoretic deposition and characterization of HA/chitosan nanocomposite coatings on Ti6Al7Nb alloy

被引：0
|
作者：
Tomasz Moskalewicz
Marcin Kot
Sigrid Seuss
Aleksandra Kędzierska
Aleksandra Czyrska-Filemonowicz
Aldo R. Boccaccini
机构：
[1] AGH University of Science and Technology,Faculty of Metals Engineering and Industrial Computer Science
[2] AGH University of Science and Technology,Faculty of Mechanical Engineering and Robotics
[3] University of Erlangen-Nuremberg,Institute of Biomaterials
[4] Polish Academy of Science,Institute of High Pressure Physics
[5] Warsaw University of Technology,Faculty of Chemistry
来源：
Metals and Materials International | 2015年 / 21卷
关键词：
biomaterials; coating; surface modification; microstructure; transmission electron microscopy (TEM);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Nano-hydroxyapatite/chitosan (nc-HA/chitosan) composite coatings were produced on two phase (α+β) Ti6Al7Nb titanium alloy substrates by electrophoretic deposition (EPD). The microstructure of the coatings was examined by scanning- and transmission electron microscopy methods as well as by X-ray diffractometry. The coatings, 770 nm–800 nm thick, were uniform, without any cracks or presence of large voids and they exhibited good adhesion to the titanium alloy substrate. The microstructure of the coatings consisted of nc-HA needle-like particles homogeneously embedded in a chitosan matrix. The deposited coatings exhibited good adhesion to the substrate. The best adhesion to the titanium alloy was determined for the coating deposited from suspensions containing 4 g/L of HA at 10 V during 240 s. The results confirm EPD as a convenient method to develop uniform and crack-free nanoscale organic-inorganic composite coatings on two phase titanium alloy substrates with potential application in orthopedic and dental implants.
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页码：96 / 103
页数：7
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