Chapter 67. Sintering Behavior and Grain Structure Development of ZrO2– and Al2O3–Compacts Fabricated from Different Nanosized Powders

  1. Hau-Tay Lin and
  2. Mrityunjay Singh
  1. Stephan Appel1,
  2. Rolf Clasen1,
  3. Sabine Schlabach2 and
  4. Bin Xu And2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294758.ch67

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

How to Cite

Appel, S., Clasen, R., Schlabach, S. and And, B. X. (2002) Sintering Behavior and Grain Structure Development of ZrO2– and Al2O3–Compacts Fabricated from Different Nanosized Powders, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294758.ch67

Author Information

  1. 1

    Saarland University Department of Powder Technology Im Stadtwald, Building 43 D–66123 Saarbriicken, Germany

  2. 2

    Dieter Vollath IMF III, Research Center Karlsruhe, P. 0. Box 3640 D–76021 Karlsruhe, Germany

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375792

Online ISBN: 9780470294758

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Keywords:

  • sintering behavior;
  • grain structure development;
  • nanosized powders;
  • alumina powders;
  • zirconia

Summary

The sintering temperature of compacts from nanosized powders can be significantly reduced if a suitable starting powder is available. Therefore different nanopowders were investigated and compared. For alumina powders, problems arise due to the phase transformation to the high temperature a-phase. Doping with FeO reduces the phase transition temperature. Thus a transparent α–alumina compact could be sintered at 900°C, which is surprisingly low. For zirconia, only yttrium-stabilized powders lead to compacts with high mechanical strength.