Chapter 23. Influence of Microstructure and Grain Boundary Phase on Tribological Properties of Si3N4 Ceramics

  1. Mrityunjay Singh and
  2. Todd Jessen
  1. H. Hyuga1,
  2. S. Sakaguchi2,
  3. K. Hirao2,
  4. Y. Yamauchi2 and
  5. S. Kanzaki2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294680.ch23

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

How to Cite

Hyuga, H., Sakaguchi, S., Hirao, K., Yamauchi, Y. and Kanzaki, S. (2001) Influence of Microstructure and Grain Boundary Phase on Tribological Properties of Si3N4 Ceramics, in 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3 (eds M. Singh and T. Jessen), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294680.ch23

Author Information

  1. 1

    Synergy Ceramics Laboratory, Nagoya, Aichi, 463–8687 Japan e-mail: hyuga@nirin.go.jp

  2. 2

    National Industrial Research Institute of Nagoya, Nagoya, Aichi, 463–8687 Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2001

ISBN Information

Print ISBN: 9780470375730

Online ISBN: 9780470294680

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Keywords:

  • microstructure;
  • tribological;
  • ceramics;
  • aluminium;
  • X-ray

Summary

The influence of microstructure on the friction and wear properties of various Si3N4 ceramics was investigated in sliding contact test without lubricant. The microstructures of Si3N4 were controlled in the fabrication process with changing sintering time and amounts of sintering aids. The amount of sintering aids was shown to have a significant effect on the wear behaviour. Specific wear rates decreased from 104 to 106 mm3 N-1m-1 with decreasing sintering aid concentration. This result shows that the wear properties of Si3N4 ceramics can be tailored by modifying the grain boundary phase.