Phase Stability of Zirconia Toughened Alumina Composite for Artificial Joints

Junji Ikeda; Giuseppe Pezzotti; Takefumi Nakanishi

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

Paper Titles

Phase Stability and Residual Stress Field in Nano-Structured 3Y-TZP
p.1227

Effect of Dopant on Phase Stability of Zirconia in Hot Water
p.1231

The Characteristics of the New Ceramic Material for Artificial Joints
p.1235

Influence of Complex Frictional Heating and Mechanical Stress Effect for Surface Crystalline Structure Change of Zirconia Femoral Head
p.1239

Phase Stability of Zirconia Toughened Alumina Composite for Artificial Joints
p.1243

Investigations of an Alumina Ceramic with Zirconia Gradient for the Application as Load Bearing Implant for Joint Prostheses
p.1247

Statistical Analysis of Surface and Sub-Surface Residual Stress Fields in Retrieved Alumina Femoral Heads after Long-Term Implantation
p.1251

Mechanical Properties of Hip Joint Heads Made of the Dispersion Ceramic - Alumina Toughened Zirconia
p.1257

Tribological Behaviour of an Alumina Toughened Zirconia Ceramic for an Application in Joint Prostheses
p.1261

HomeKey Engineering MaterialsKey Engineering Materials Vols. 309-311Phase Stability of Zirconia Toughened Alumina...

Phase Stability of Zirconia Toughened Alumina Composite for Artificial Joints

Abstract:

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.

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Periodical:

Key Engineering Materials (Volumes 309-311)

Pages:

1243-1246

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.309-311.1243

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Online since:

May 2006

Authors:

Junji Ikeda, Giuseppe Pezzotti, Takefumi Nakanishi

Keywords:

Aluminum (Al), Low Temperature Degradation, Phase Transformation, Residual Stress, Zirconia, Zirconia-Toughened Alumina (ZTA)

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