Paper Title:
Study on Bio-Tribological Properties of Nitrogen Ion Implanted UHMWPE
  Abstract

As the aseptic loosening induced by polyethylene wear debris is the main cause of long-term failure of total joint replacements, increasing the wear resistance of ultrahigh molecular weight polyethylene (UHMWPE) will be very important to obtain long-life artificial joint. In this paper the UHMWPE was implanted with 450 keV N+ ions to three doses of 5×1014/cm2, 2.5×1015/cm2 and 1.25×1016/cm2. The friction and wear behaviors of UHMWPE were studied under lubrication of distilled water and blood plasma using a ball-on-disk tribometer with a ZrO2 ceramic ball as a counterface. Experimental results showed that the friction coefficient of ions implanted UHMWPE are higher than un-implanted UHMWPE. Under blood plasma lubrication condition, the wear rate of implanted UHMWPE was lower than un-implanted UHMWPE, and the wear rate decreased with increasing implantation dose. The plow, plastic deformation and fatigue were wearing mechanism for un-implanted UHMWPE and the abrasive wear for implanted UHMWPE.

  Info
Periodical
Key Engineering Materials (Volumes 288-289)
Edited by
Xingdong Zhang, Junzo Tanaka, Yaoting Yu and Yasuhiko Tabata
Pages
649-652
DOI
10.4028/www.scientific.net/KEM.288-289.649
Citation
D. S. Xiong, "Study on Bio-Tribological Properties of Nitrogen Ion Implanted UHMWPE", Key Engineering Materials, Vols. 288-289, pp. 649-652, 2005
Online since
June 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kwang Wook Kim, Mi Hye Lee, Dae Hyun Yoon, Dong Woo Shin
Abstract:The photocatalytic efficiencies of three commercially available TiO2 samples were evaluated and compared for TiO2 powder dispersed system...
1968
Authors: Zhi Yong Ling, Ji Chang Yang, Jian Ning Ding, Yong Liu, Zhi Wen Zhuang, Zhen Fan, Ping Yang
Abstract:Micro-flowing technique gained popular applications in microdevices of microelectromechanical systems (MEMS), and the performance of...
29
Authors: Dang Sheng Xiong, Jian Ming Lin, Ling Ling Liu
Abstract:Wear is the primary cause of failure of joint replacement prostheses. Poly(ether-ether-ketone)(PEEK) was reinforced with nano-Al2O3...
1239
Authors: Yu Ying Gong, Wei Lin Zhao, Zong Ming Liu, Yan Fang Niu
Chapter 4: Geothermal Energy, Fuel Cell, Energy-saving Technology and Storage Technology
Abstract:In this paper, the effect on the thermal efficiency enhancement of a heat pipe using SiO2-water nanofluid on different operating...
570