Chapter 9. A Submicron-Scale Duplex Zirconia and Alumina Composite by Polymer Complexation Processing

  1. Ersan Ustundag and
  2. Gary Fischman
  1. Sang-Jin Lee and
  2. Waltraud M. Kriven

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294567.ch9

23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures : A: Ceramic Engineering and Science Proceedings, Volume 20, Issue 3

23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures : A: Ceramic Engineering and Science Proceedings, Volume 20, Issue 3

How to Cite

Lee, S.-J. and Kriven, W. M. (1999) A Submicron-Scale Duplex Zirconia and Alumina Composite by Polymer Complexation Processing, in 23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures : A: Ceramic Engineering and Science Proceedings, Volume 20, Issue 3 (eds E. Ustundag and G. Fischman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294567.ch9

Author Information

  1. Department of Materials Science and Engineering University of Illinois at Urbana-Champaign Urbana, IL. 61801

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1999

ISBN Information

Print ISBN: 9780470375631

Online ISBN: 9780470294567

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Keywords:

  • microstructure;
  • duplex;
  • zirconia;
  • alumina;
  • polyethylene

Summary

A submicron-scale, duplex microstructure of pure zirconia and alumina in 1:1 volume ratio has been achieved via a polymer complexation process. Polyethylene glycol (PEG) in an alcohol base was used as a polymeric carrier to synthesize homogeneous and stable, mixed-oxide, amorphous powders. After calcination at 1350 °C for 1 h, the powders were fully crystallized. To make highly sinterable, submicron powder, the amorphous precursor was calcined at 600 °C and attrition milled for 5 h. Densification above 99% relative density was obtained by hot-pressing at a comparatively low temperature of 1450 °C for 30 min, under 30 MPa in vacuum. The submicron-scale microstructure, which contained 86 vol% t-ZrO2, had a flexural strength of ∼800 MPa.