Adhesion strength of plasma-sprayed hydroxyapatite coatings on laser gas-nitrided pure titanium

被引：36

作者：

Yang, Sen ^{[1
]}

Man, H. C. ^{[2
]}

Xing, Wen ^{[1
]}

Zheng, Xuebin ^{[3
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Mat Sci & Engn, Nanjing 210094, Peoples R China

[2] Hong Kong Polytech Univ, Laser Proc Lab, Dept Ind & Syst Engn, Adv Mfg Technol Ctr, Hong Kong, Hong Kong, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2009年 / 203卷 / 20-21期

关键词：

Hydroxyapatite; Plasma spraying; Bonding strength; Laser gas nitriding; SHAPE-MEMORY ALLOY; CALCIUM-PHOSPHATE COATINGS; RESIDUAL-STRESS; SURFACE CHARACTERISTICS; BIOMEDICAL APPLICATIONS; THIN-FILMS; BEHAVIOR; DISSOLUTION; DEPOSITION; LAYER;

D O I：

10.1016/j.surfcoat.2009.03.034

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A layer of bioceramic HA was coated on laser gas-nitrided pure titanium and grit-blasted pure titanium substrates using plasma-spraying technique, respectively. X-ray diffraction analysis showed that the microstructures of the coating were mainly composed of HA, amorphous calcium phosphate (ACP) and some minute phases of tricalcium phosphate (TCP, alpha-TCP and beta-TCP), tetracalcium phosphate (TTCP) and calcium oxide (CaO). The experimental results showed that the 3-D TiN dendritic scaffold structure produced on the surface of pure titanium using laser gas nitriding technique in advance could anchor the HA coating and improved the interfacial adherence significantly as compared with that on the grit-blasted surfaces. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3116 / 3122

页数：7

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