Chapter 59. Effects of Different Raw Si3N4 Powders on Microstructures and Properties of a High-Temperature SiAlON Ceramic

  1. John B. Wachtman Jr.
  1. C. James Hwang1 and
  2. Sonya Diezhandino2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314784.ch59

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5

How to Cite

Hwang, C. J. and Diezhandino, S. (1995) Effects of Different Raw Si3N4 Powders on Microstructures and Properties of a High-Temperature SiAlON Ceramic, in Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314784.ch59

Author Information

  1. 1

    The Dow Chemical Company, Venture/CR&D-Ceramics, Midland, MI 48674

  2. 2

    The Pennsylvania State University, Materials Science & Engineering, University Park, PA 16802

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1995

ISBN Information

Print ISBN: 9780470375389

Online ISBN: 9780470314784

SEARCH

Keywords:

  • thermal homogeneity;
  • superstructure;
  • optimum;
  • reliable;
  • demonstrates

Summary

Three different Si3N4 powder sources (synthesized by diimide, direct nitridation and carbothermal method, respectively) were used to prepare a high-temperature SiAlON material with fine and coarse grain sizes. Effects of powder characteristics (oxygen and carbon contents, metal and halogen contents, particle morphology) on densification, phase transformation, microstructures and mechanical properties are examined. The impact of grain size on properties is also discussed.