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Recent Progress in Silicon Nitride and Silicon Carbide Ceramics

Published online by Cambridge University Press:  29 November 2013

Mamoru Mitomo  and
Günter Petzow
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We know from experience that ceramic materials are brittle and easily broken. This is one reason why ceramics have not been used as engineering materials. Fracture is the result of crack growth through the microstructure. It was Griffith who proposed that ceramics have intrinsic cracks which grow under applied stress. The concentration of the applied stress at the crack tip decreases the strength to a level of about 1% or less of the theoretical strength. If the crack starts to grow, strength decreases so sharply that a catastrophic fracture occurs.

In spite of the brittle nature of ceramics, their application as engineering materials was proposed in the 1960s because ceramic materials made of silicon nitride or carbide have higher strength at high temperatures than metals and oxide ceramics. Non-oxide ceramics have lower thermal-expansion-coefficients than oxides, resulting in better thermal shock resistance, which is one of the most important requirements for engineering ceramics.

Type
Silicon-Based Ceramics
Information
MRS Bulletin , Volume 20 , Issue 2 , February 1995 , pp. 19 - 22
Copyright
Copyright © Materials Research Society 1995

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References

1.Griffith, A.A., Phil. Trans. Roy. Soc. 221 (1920) p. 163.Google Scholar
2.Gordon, J.E., The New Science of Strong Materials (Penguin Books Ltd., Middlesex, England, 1968) p. 79.Google Scholar
3.Parr, N.L. and May, E.R.W., Proc. Brit. Ceram. Soc. 7 (1967) p. 81.Google Scholar
4.Weaver, C.Q., Baumgartner, H.R., and Torti, M.L., in Special Ceramics 6, edited by Popper, P. (Brit. Ceram. Res. Assoc., 1975) p. 261.Google Scholar
5.Prochazka, S., in Special Ceramics 6, edited by Popper, P. (Brit. Ceram. Res. Assoc., 1975), p. 171.Google Scholar
6.Tewilliger, G.R. and Lange, F.F., J. Mater. Sci. 10 (1975) p. 1169.CrossRefGoogle Scholar
7.Mitomo, M., J. Mater. Sci. 11 (1976) p. 1103.CrossRefGoogle Scholar
8.Taguchi, M., Adv. Ceram. Mater. 2 (1987) p. 754.CrossRefGoogle Scholar
9.Mitomo, M. and Tajima, Y., J. Ceram. Soc. Jpn. 99 (1991) p. 1014.CrossRefGoogle Scholar
10.Lange, F.F., J. Am. Ceram. Soc. 62 (1979) p. 428.CrossRefGoogle Scholar
11.Li, C.W. and Yamanis, J., Ceram. Eng. Sci. Proc. 10 (1989) p. 632.CrossRefGoogle Scholar
12.Tani, E., Umebayashi, S., Kishi, K., Kobayashi, K., and Nishijima, M., Am. Ceram. Soc. Bull. 65 (1986) p. 1311.Google Scholar
13.Becher, P.F., J. Am. Ceram. Soc. 74 (1991) p. 428.Google Scholar
14.Tailoring of Mechanical Properties of S3N4 Ceramics, edited by Hoffmann, M.J. and Petzow, G. (NATO ASI Series, Kluwer Academic Publishers, Dordrecht, 1994).CrossRefGoogle Scholar
15.Silicon Nitride Ceramics: Scientific and Technological Advances, edited by Chen, I-W., Becher, P.F., Mitomo, M., Petzow, G., and Yen, T-S. (Mater. Res. Soc. Symp. Proc. 287, Pittsburgh, PA, 1993).Google Scholar
16.Silicon Nitride-Based Ceramics, edited by Hoffmann, M.J., Becher, P.F., and Petzow, G. (Trans Tech Publications, Aedermanndorf, 1994).Google Scholar
17.Suzuki, K., Research Laboratory Report 36 (Asahi Glass Co., Ltd., Japan, 1986) p. 25.Google Scholar
18.Mulla, M.A. and Krstic, V.D., Acta Metall. Mater. 42 (1) (1994) p. 303.CrossRefGoogle Scholar
19.Padture, N.P., J. Am. Ceram. Soc. 77 (1994) p. 519.CrossRefGoogle Scholar