Chapter 7. Transformation-Toughened Bulk Tetragonal Zirconia: I, Overview of Development and Properties
- William J. Smothers
Published Online: 26 MAR 2008
Copyright © 1986 The American Ceramic Society, Inc.
Proceedings of the 13th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 7, Issue 9/10
How to Cite
Gupta, T. K. and Andersson, C. A. (2008) Transformation-Toughened Bulk Tetragonal Zirconia: I, Overview of Development and Properties, in Proceedings of the 13th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 7, Issue 9/10 (ed W. J. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320358.ch7
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1986
Print ISBN: 9780470374689
Online ISBN: 9780470320358
- ofphase stability;
- thermal conductivity;
- oxygen wcancies;
- martensitic phase transformation
This paper gives an overview of the single-phased bulk tetragonal zirconia from the standpoint of phase stability, mechanism of transformation, Ms temperature, grain size, and composition. The physics of this material at low temperatures is reviewed from the specific heat and thermal conductivity, both of which exhibit non-Debye features attributed to oxygen vacancies. Although the concentration of these vacancies is low in tetragonal zirconia, the electrical conductivity is found to be surprisingly high, close to that of cubic zirconia, and has been attributed to the low migration energy of oxygen vacancies.