Chapter 24. Microstructural Effects on the High Strain-Rate Behavior of Zirconia
- John B. Wachtman Jr
Published Online: 26 MAR 2008
Copyright © 1988 The American Ceramics Society, Inc.
12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10
How to Cite
Ritter, A. P., Childs, G. L. and Winzer, S. R. (1988) Microstructural Effects on the High Strain-Rate Behavior of Zirconia, in 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310502.ch24
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1988
Print ISBN: 9780470374818
Online ISBN: 9780470310502
- hugoniot etastic limits (HEL);
- high strain rates (HSR);
- TEM analyses
Four grades of commercially available, partially stabilized zirconia with fracture toughnesses ranging from 6 to 15 MPa Vm were loaded in compression using a split Hopkinson pressure bar at average strain rates of approximately 1800 s-1. The typical yield strength for these samples was 2.85 GPa, with no significant variations attributable to fracture toughness. Using powder-gun-driven flyer plates, the loading rates were extended to about 106s-1 at pressures up to 25 GPa. The measured Hugoniot Elastic Limits (HEL) varied between 9 and 11 GPa, depending on the grade of zirconia used. Samples recovered for post-test characterization show evidence of plastic and brittle deformation when loads exceed the HEL.