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http://dx.doi.org/10.9725/kstle.2005.21.5.216

Ceramic-Ceramic Wear of Zirconia/Alumina Composites for the Application of Total Hip Replacement  

Lee Kwon-Yong (Bioengineering Research Center, Sejong University)
Kim Hwan (Dept. of Mechanical Engineering, Sejong University)
Kim Dae-Jun (Bioengineering Research Center, Sejong University)
Lee Myong-Hyon (Advanced Material Analysis and Evaluation Team, KICET)
Seo Won-Seon (Advanced Material Analysis and Evaluation Team, KICET)
Publication Information
Tribology and Lubricants / v.21, no.5, 2005 , pp. 216-220 More about this Journal
Abstract
The sliding wear behaviors of three different compositions of novel low temperature degradation-free zirconia/alumina (LTD-free Z/A) composites were examined in a ceramic-ceramic contact pair. The wear tests were performed by using a pin-on-disk type wear tester in a linear reciprocal sliding motion with a line contact in both dry and bovine serum lubricated conditions at room temperature. From the results of dry sliding wear tests, Z/A#1((5.3Y, 4.6Nb)-TZP/80 $vol\%Al_2O_3$) showed the best wear resistance among three kinds of LTD-free Z/A composites. For the bovine serum lubricated sliding wear tests, wear was too little to be measured for all kinds of Z/A composites. These novel LTD-free Z/A composites having excellent wear resistance demonstrated a potential as the alternative materials for the ceramic-ceramic contact pairs of femoral head and acetabular liner in total hip replacement.
Keywords
zirconia/alumina composite; wear; low temperature degradation free; ceramic-ceramic contact pair.;
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