Mechanical Properties of Anti-Infectious, Bio-Active and Wear Resistant Ceramic Implant Surface Coatings

Abstract:

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Implant failure due to aseptic loosening is a major complication in total hip arthroplasty. Different implant coatings aim to reduce the risk of implant loosening by anti-infectious, bio-active or wear resistant approaches. The mechanical properties, especially bonding strength and wear resistance, of a Cu-TiO2, CaP and TiN coating were investigated in this study. A scratch test and a standard adhesive test were used to determine the bonding strength of the coatings. To analyse the wear resistance a modified special testing machine was used to evaluate wear with PU-foam and PMMA as counterparts. The investigations showed that all coatings have greater bonding strengths than the minimum required 22 N/mm2 for medical implant coatings. Significant differences in total wear were determined during the wear tests. With the exception of the CaP no removal of the coatings was detected.

Info:

Periodical:

Key Engineering Materials (Volumes 396-398)

Main Theme:

Edited by:

Marcelo Prado and Cecília Zavaglia

Pages:

357-360

DOI:

10.4028/www.scientific.net/KEM.396-398.357

Citation:

A. Fritsche et al., "Mechanical Properties of Anti-Infectious, Bio-Active and Wear Resistant Ceramic Implant Surface Coatings", Key Engineering Materials, Vols. 396-398, pp. 357-360, 2009

Online since:

October 2008

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Price:

$35.00

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