Chapter 60. Non-Planar Al2O3YPSZ Laminates Byelectrophoretic Deposition Using Al2O3 Fibre Electrodes

  1. John B. Wachtman Jr.
  1. M. Whitehead,
  2. P. Sarkar and
  3. P. S. Nicholson

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314555.ch60

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5

How to Cite

Whitehead, M., Sarkar, P. and Nicholson, P. S. (1994) Non-Planar Al2O3YPSZ Laminates Byelectrophoretic Deposition Using Al2O3 Fibre Electrodes, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314555.ch60

Author Information

  1. Ceramic Research Group Department of Materials Science and Engineering McMaster University Hamilton, Ontario, Canada

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375334

Online ISBN: 9780470314555

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Keywords:

  • laminate fracture toughness;
  • non-planar laminates;
  • solid ethanol suspensions;
  • depositing electrode;
  • deposition rate

Summary

Non-planar (“wavy”) Al2O3/YPSZ laminates were fabricated by electrophoretic deposition (EPD). Sequential layers were deposited onto a grid of Au coated Al2O3 fibres from 5 vol% solid, ethanol suspensions. Laminates with thin ∼3 um YPSZ, and thick > 10 μm Al2O3 layers (∼12 vol% YPSZ) were produced. Deposit mass was found to be a linear function of deposition time and current density. Mechanical properties were studied up to 1300°C. The flexural strength of the laminates was reduced compared to monolithic Al2O3, due to the presence of defects, which originate during processing. Laminate fracture toughness was increased over monolithic Al2O3.