Numerical surface characterization of wear debris from artificial joints using atomic force microscopy  

作　　者：YUAN ChengQing JIN ZhongMin TIPPER J L YAN XinPing 

机构地区：[1]Reliability Engineering Institute, Wuhan University of Technology, Wuhan 430063, China [2]Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom

出　　处：《Chinese Science Bulletin》2009年第24期4583-4588,共6页

基　　金：Supported by UK Royal Society K C Wong Fellowship and National Natural Science Foundation of China (Grant No. 50705070)

摘　　要：Study on surface features of wear particles generated in wear process provides an insight into the progress of material failure of artificial joints. It is very important to quantify the surface features of wear particles in three dimensions. In this study, a new approach using atomic force microscopy was proposed to carry out 3D numerical surface characterization of wear debris generated from artificial joints. Atomic force microscopy combined with image processing techniques was used to acquire appropriate 3D images of wear debris. Computerized image analysis techniques were then used to quantify surface texture features of wear debris such as surface roughness parameters and surface texture index. The method developed from the present study was found to be feasible to quantity the surface characterization of nanoand micro-sized wear debris generated from artificial joints.Study on surface features of wear particles generated in wear process provides an insight into the progress of material failure of artificial joints. It is very important to quantify the surface features of wear particles in three dimensions. In this study, a new approach using atomic force microscopy was proposed to carry out 3D numerical surface characterization of wear debris generated from artificial joints. Atomic force microscopy combined with image processing techniques was used to acquire appropriate 3D images of wear debris. Computerized image analysis techniques were then used to quantify surface texture features of wear debris such as surface roughness parameters and surface texture index. The method developed from the present study was found to be feasible to quantity the surface characterization of nanoand micro-sized wear debris generated from artificial joints.

关 键 词：原子力显微镜 人工关节 表面特性 数值 磨粒 表面粗糙度参数 磨损颗粒 三维图像 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构] TH742[自动化与计算机技术—计算机科学与技术]