Electrophoretic deposition of carbon nanotube-reinforced hydroxyapatite bioactive layers on Ti-6Al-4V alloys for biomedical applications

被引：78
作者：
Kaya, Cengiz [1 ]
机构：
[1] Yildiz Tech Univ, Fac Chem & Met, Dept Met & Mat Engn, Istanbul, Turkey
来源：
CERAMICS INTERNATIONAL | 2008年 / 34卷 / 08期
关键词：
Hydroxyapatite; Carbon nanotube; Deposition;
D O I：
10.1016/j.ceramint.2007.06.007
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ultra-fine (20 nm) hydroxyapatite powders-reinforced with multi-walled carbon nanotubes were coated on Ti-6Al-4V medical alloy using electrophoretic deposition in an attempt to increase poor mechanical properties of hydroxyapatite, in particular inter-laminar shear strength between coating layer and implant surface. It is shown that the addition of carbon nanotubes increases both hardness, elastic modulus and inter-laminar shear strength of monolithic hydroxyapatite layers. A deposit thickness of 25 mu m is also found to be critical for preventing crack formation during sintering. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：1843 / 1847
页数：5
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