Chapter 62. Effects of Atmosphere on Sintering and Properties of Aluminum Oxynitride

  1. Waltraud M. Kriven and
  2. Hua-Tay Lin
  1. H. Gorter,
  2. L. J. M. G. Dortmans and
  3. B. Bos

Published Online: 27 MAR 2008

DOI: 10.1002/9780470294802.ch62

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3

How to Cite

Gorter, H., Dortmans, L. J. M. G. and Bos, B. (2003) Effects of Atmosphere on Sintering and Properties of Aluminum Oxynitride, in 27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3 (eds W. M. Kriven and H.-T. Lin), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294802.ch62

Author Information

  1. TNO-TPD P.O. Box 595 5600 AN Eindhoven, Netherlands

Publication History

  1. Published Online: 27 MAR 2008
  2. Published Print: 1 JAN 2003

ISBN Information

Print ISBN: 9780470375839

Online ISBN: 9780470294802

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Keywords:

  • polycrystalline magnesium aluminate spinel;
  • general electric company;
  • spinel products;
  • sapphire;
  • polycarbonate

Summary

Sintering of aluminium oxynitride (AlON) is executed at temperatures where a liquid phase is formed. in a furnace with carbon heating elements decomposition occurs due to a low oxygen pressure. Properties of samples sintered in these furnaces are compared. A furnace with tungsten heating elements yields a significantly higher oxygen pressure, which prevents the decomposition. Densification in this furnace is comparable to that in a furnace with carbon heating elements. A model for the decomposition reaction in a furnace with carbon elements is presented. It follows that to prevent the decomposition of y-AlON, carbon should be eliminated in the sintering environment.