Bonding strength of fluoridated hydroxyapatite coatings: A comparative study on pull-out and scratch analysis

被引：55
作者：
Cheng, Kui [1 ]
Ren, Changbao [1 ]
Weng, Wenjian [1 ]
Du, Piyi [1 ]
Shen, Ge [1 ]
Han, Gaorong [1 ]
Zhang, Sam [2 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
来源：
THIN SOLID FILMS | 2009年 / 517卷 / 17期
基金：
高等学校博士学科点专项科研基金;
关键词：
Fluoridated hydroxyapatite; Coating; Bonding strength; Failure mode; IN-VITRO; FLUORAPATITE; RESORPTION; SOLUBILITY; IMPLANTS; BEHAVIOR;
D O I：
10.1016/j.tsf.2009.03.122
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, fluoridated hydroxyapatite coatings are prepared on Ti6Al4V alloy substrate through sol-gel method. The bonding strength is evaluated through two different methods: pull-out method and scanning scratch method. Both results show F incorporation could effectively increase the bonding between coating and substrate. It is found that the pull-out results are actually compounds of adhesion failure, cohesive failure and glue failure; while the critical loads in scanning scratch show only the coating-matrix adhesion strength. It is suggested that scanning scratch test is more suitable to evaluate the bonding strength of bioactive ceramic coatings. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：5361 / 5364
页数：4
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