Chapter 19. Orientation of Platelet Redforcements in Ceramic Matrix Composites Produced by Pressure Filtration
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1992 The American Ceramic Society
Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8
How to Cite
Warner, D. A., Warner, K. A., Juul, D. and Sørensen, O. T. (1994) Orientation of Platelet Redforcements in Ceramic Matrix Composites Produced by Pressure Filtration, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313954.ch19
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1994
Print ISBN: 9780470375174
Online ISBN: 9780470313954
Alumina platelet (Al2O3PL) reinforced Y-TZP composites were produced by pressure filtration of dispersed suspensions. The platelet texture within the consolidated compacts was evaluated by SEM and neutron diffraction to assess the effects of pressing rate, constant rate versus constant displacement filtration, and die loading on platelet orientation. A weak texture condition, termed “eddy texturing” due to an apparent dependence on fluid flow during filtration, dominated platelet orientation. The resulting composites possessed an anisotropic fracture toughness (KIC) between the compact surfaces and the bulk material. Die loading procedure and Al2O3 agglomerate removal strongly influenced the density and flexural strength of the sintered composites.