Hostname: page-component-76fb5796d-zzh7m Total loading time: 0 Render date: 2024-04-25T10:23:53.766Z Has data issue: false hasContentIssue false
  • English
  • Français

Silicon Nitride Ceramics—Alloy Design

Published online by Cambridge University Press:  25 February 2011

Tseng-Ying Tien
Tseng-Ying Tien*
Affiliation:
Materials Science and Engineering, The University of Michigan, Ann Arbor, MI 48109
Get access

Abstract

Properties of silicon nitride ceramics depend on the phases present and their microstructure. In order to obtain ceramics with optimum properties, knowledge of phase relationships in silicon nitride-metal oxides systems and the mechanism and kinetics of microstructure development are necessary.

There are four major stable silicon nitride phases in the Si3N4-metal oxides systems: β-Si3N4, α′-SiAlON, AIN-polytypoids and silicon oxynitride. The morphologies of these phases are different. The β-Si3N4 grains are elongated hexagonal rods; the α′-SiA1ON grains are equiaxed; the A1N-polytypoids are platelets; and the silicon oxynitride are equiaxed. Ceramics with combinations of these phases would have different microstructures and properties. The system Si3N4-SiO2-AIN-Al2O3-YN-Y2O3 will be used to demonstrate the concept of the alloy design. Kinetics of microstructural development will also be discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 287: Symposium K – Silicon Nitride Ceramics–Scientific and Technological Advances , 1992 , 51
Copyright
Copyright © Materials Research Society 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Sun, W-Y., Tien, T-Y. and Yen, T-S., J. Am. Ceram. Soc. 74 (11) 2753–58 (1991).Google Scholar
2. Hwang, C.M., PhD thesis, The University of Michigan, 1988.Google Scholar
3. Lai, K R. and Tien, T.Y., J. Am. Ceram. Soc., in press.Google Scholar
4. Lai, K.R. and Tien, T.Y., unpublished data.Google Scholar
5. Wisnudel, M., MS thesis, University of Michigan, 1991.Google Scholar
6. Chen, C.F. and Tien, T.Y., Ceram. Eng. and Sci Proc. 8 (7-8) 778–95 (1987).Google Scholar
7. Bonnell, D.A., Tien, T-Y. and Rühle, M., J. Am. Ceram. Soc., 70 (7) 460–65 (1987).Google Scholar
8. Sun, W-Y., Tien, T-Y. and Yen, T-S., J. Am. Ceram. Soc., 74 (10) 2547–50 (1991).Google Scholar
9. Huang, Z-K., Tien, T-Y. and Yen, T-S., J. Am. Ceram. Soc., 69 (10) C241–2 (1986).Google Scholar
10. Sheu, T.S. and Tien, T.Y., Bimonthly Report, Ceramic Technology for Advanced Heat Engine Project, Oak Ridge National Laboratory, October 31, 1991, p. 69.Google Scholar
11. Sheu, T.S. and Tien, T.Y., Bimonthly Report, Ceramic Technology for Advanced Heat Engine Project, Oak Ridge National Laboratory, August 28, 1992, p. 70.Google Scholar
12. Zhung, H.R., Li, W.L., Feng, J.W., Huang, Z.K. and Yan, D.S., Europ. Ceram. Soc., 7, 329–333 (1991).Google Scholar
13. Trigg, M.B. and Jack, K.H., Proc. First International Symposium on Ceramic Components for Engines, 1983, Hakone, Japan, edited by Somiya, S., Kanai, E. and Ando, K. (KTK Scientific Publishers, Tokyo, Japan, 1984) pp. 343–349.Google Scholar