Improved friction and wear performance of micro dimpled ceramic-on-ceramic interface for hip joint arthroplasty

被引：70
作者：
Roy, Taposh [1 ]
Choudhury, Dipankar [2 ,3 ]
Ghosh, Subir [1 ]
Bin Maniat, Azuddin [4 ]
Pingguan-Murphy, Belinda [1 ]
机构：
[1] Univ Malaya, Fac Engn, Dept Biomed Engn, Kuala Lumpur 50603, Malaysia
[2] Brno Univ Technol, Fac Mech Engn, Brno 61669, Czech Republic
[3] Brno Univ Technol, CEITEC Cent European Inst Technol, Brno 61600, Czech Republic
[4] Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
来源：
CERAMICS INTERNATIONAL | 2015年 / 41卷 / 01期
关键词：
ceramic-on-ceramic hip joints; Micro-dimple; Wear; ROLLING-CONTACT FATIGUE; ARTIFICIAL HIP; KNEE ARTHROPLASTY; CONCAVE DIMPLES; AL2O3; SURFACES; FILM FORMATION; LUBRICATION; DEBRIS; REDUCTION; GROWTH;
D O I：
10.1016/j.ceramint.2014.08.123
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：
The purpose of this study is to investigate the tribological effect of micro-dimpled surface textures for application in ceramic-on-ceramic hip prostheses. A rectangular array of circular dimples was selected as the texture pattern. A CNC micro drilling machine was used to fabricate these dimples on a flat ceramic substrate. Tribology tests were performed by using a pin-on-disk method with selected hertzian contact pressures and speeds based on normal gait of a hip joint, and results compared with non-dimpled surface. A dimpled surface with large dimple diameters and a high dimple density (phi 400 mu m and density 15%) showed significant tribological performance gains, including a nearly 22% friction and 53% wear reduction. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：681 / 690
页数：10
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