Mechanical Properties of Hip Joint Heads Made of the Dispersion Ceramic - Alumina Toughened Zirconia

Abstract:

For orthopaedic applications an Alumina Toughened Zirconia Ceramic was tested regarding its mechanical behaviour. We observed a marked higher strength compared to the requirements according to FDA guidelines and a significantly higher strength compared to alumina ceramic despite of 15 % decreased fatigue burst strength. The wear resistance after ring-on-disc method is significantly improved comparing to standard Al2O3/Al2O3 pairings. It means the application of endoprosthetic components made of ATZ-ceramic offers more safety and reliability.

• Periodical: Key Engineering Materials (Volumes 309-311)
• Pages: 1257-1260
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.309-311.1257
• Online since: May 2006
• Authors: Sabine Begand, Thomas Oberbach, Wilfried Glien
• Keywords: Dispersion Ceramic, Fatigue Test, Ring-On-Disc, Wear

References

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