Wear Resistance of Nano-ZrO2 Ceramic for Hip Joint Head Prostheses

Abstract:

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By using the ring-block friction and wear machine, the friction and wear behavior of nano-ZrO2 ceramic test block against GCr15 steel test ring has been studied. At the same time, friction and wear test of 45# steel block against GCr15 steel ring has also been conducted for comparison. By using self-made test machine for the wear ability of the hip joint, the friction test of nano-ZrO2 ceramic hip joint head against ultra-high molecular weight polyethylene (UHMWPE) acetabulum has been done, the friction test of Co-Cr-Mo alloy hip joint head against UHMWPE acetabulum has also been made for comparison. The results show that the friction factor of nano-ZrO2 ceramic test block against GCr15 steel test ring is less 37.3% than that of 45# steel block against GCr15 steel ring, the wear weight of nano-ZrO2 ceramic test block against GCr15 steel test ring is only 0.76% of that of 45# steel block against GCr15 steel ring. The wear weight of UHMWPE acetabulum against nano-ZrO2 ceramic hip joint head is 61.5% of UHMWPE acetabulum against Co-Cr-Mo alloy hip joint head. This indicates nano-ZrO2 ceramic has good wear resistance property and is the ideal materials for artificial Hip joint head Prostheses.

Info:

Periodical:

Advanced Materials Research (Volumes 105-106)

Edited by:

Wei Pan and Jianghong Gong

Pages:

175-178

DOI:

10.4028/www.scientific.net/AMR.105-106.175

Citation:

C. Wang et al., "Wear Resistance of Nano-ZrO2 Ceramic for Hip Joint Head Prostheses", Advanced Materials Research, Vols. 105-106, pp. 175-178, 2010

Online since:

April 2010

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Price:

$35.00

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