ANRV315-MR37-01

ARI

25 December 2006

20:24

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Low-Temperature Degradation of Zirconia and Implications for Biomedical Implants ˆ J´erome Chevalier,1 Laurent Gremillard,1 and Sylvain Deville2 1

Gemppm-Mateis, INSA Lyon, 69621 Villeurbanne, France; email: [email protected]

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Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720

Annu. Rev. Mater. Res. 2007. 37:1–32

Key Words

The Annual Review of Materials Research is online at http://matsci.annualreviews.org

Y-TZP, transformation, aging, orthopedics, dental

This article’s doi: 10.1146/annurev.matsci.37.052506.084250

Abstract

c 2007 by Annual Reviews. Copyright  All rights reserved 1531-7331/07/0804-0001$20.00

This review describes the mechanisms responsible for lowtemperature degradation (LTD) of zirconia ceramics and its detrimental consequences for biomedical devices. Special emphasis is given to the critical issue of zirconia degradation actually observed for hip prostheses. Experimental methods to accurately measure and predict LTD in a given zirconia ceramic are presented. Different solutions to inhibit LTD or at least reduce its kinetics are reviewed, with the objective of highlighting alternative options for the generation of new zirconia-based biomedical ceramic devices.

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