Carbon nanotube reinforced hydroxyapatite composite coatings produced through laser surface alloying

被引：105

作者：

Chen, Y

Zhang, YQ

Zhang, TH

Gan, CH

Zheng, CY

Yu, G

机构：

[1] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China

[2] Zhengzhou Univ Light Ind, Dept Technol & Phys, Zhengzhou 450002, Peoples R China

来源：

CARBON | 2006年 / 44卷 / 01期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

microstructure; mechanical properties; coating;

D O I：

10.1016/j.carbon.2005.07.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon nanotube (CNT) reinforced hydroxyapatite composite coatings have been successfully fabricated by laser surface alloying. The phase compositions and the microstructure of the composite coatings were studied using X-ray diffraction, scanning electron microscopy, transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). TEM observation showed that a large amount of CNTs can be found with their original tubular morphology in the composite coatings, even though some CNTs react with titanium element in the substrate during laser irradiation. Additionally, measurement on the elastic modulus, hardness of the composite coatings by nanoindentation tests indicated that the mechanical properties are affected by the amount of CNTs in the starting precursor materials. Therefore, CNT reinforced hydroxyapatite composite coating is a promising coating material for high-load-bearing metal implants. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：37 / 45

页数：9

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