Phase Stability of Zirconia Toughened Alumina Composite for Artificial Joints

Abstract:

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The phase stability under aqueous condition and changes in the wear region after the Pin-on-Flat wear testing were evaluated using Raman and fluorescence spectroscopy techniques and X-ray diffractometry for a newly developed zirconia toughened alumina (JMM-ZTA). This study suggests that JMM-ZTA is a highly stable material under aqueous environment in the human body and has a high wear resistance in Pin-on-Flat wear tests. This results from a transformation toughening mechanism operative in JMM-ZTA. Therefore, JMM-ZTA appears to have a possibility to improve the performance of monolithic alumina as a material for hip and knee joint prostheses.

Info:

Periodical:

Key Engineering Materials (Volumes 309-311)

Main Theme:

Edited by:

Takashi Nakamura, Kimihiro Yamashita and Masashi Neo

Pages:

1243-1246

DOI:

10.4028/www.scientific.net/KEM.309-311.1243

Citation:

J. Ikeda et al., "Phase Stability of Zirconia Toughened Alumina Composite for Artificial Joints ", Key Engineering Materials, Vols. 309-311, pp. 1243-1246, 2006

Online since:

May 2006

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Price:

$35.00

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