Hostname: page-component-8448b6f56d-tj2md Total loading time: 0 Render date: 2024-04-20T02:53:02.813Z Has data issue: false hasContentIssue false
  • English
  • Français

Oxidation Behavior and Effect of Oxidation on Strength of Si3N4/SiC Nanocomposites

Published online by Cambridge University Press:  31 January 2011

Hae-Won Kim ,
Young-Hag Koh  and
Hyoun-Ee Kim
Hae-Won Kim
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul, 151–742, Korea
Young-Hag Koh
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul, 151–742, Korea
Hyoun-Ee Kim
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul, 151–742, Korea
Get access

Abstract

The oxidation behavior and the effect of oxidation on the flexural strength of Si3N4/SiC nanocomposites were investigated. Parabolic weight gains, with respect to the oxidation time, were observed for all the specimens containing different amounts of SiC. However, the parabolic rate constant decreased with increasing SiC content. The main oxidation product, being in equilibrium with SiO2, was Y2Si2O7. The oxidation product became denser and retained more crystalline phase as the amount of SiC increased. The flexural strength of the nanocomposites increased by up to 40%, while that of pure Si3N4 decreased after oxidation at 1300 or 1400 %C for 100 h. This excellent oxidation resistance of Si3N4 nanocomposite was attributed to the enhancement of the crystallization of the oxidation product and the grain boundary phase by the SiC nanoparticles.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 7 , July 2000 , pp. 1478 - 1482
Copyright
Copyright © Materials Research Society 2000

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.Lange, F.F., Am. Ceram. Soc. Bull. 62, 1369 (1983).Google Scholar
2.Huang, Z.K., Greil, P., and Petzow, G., Ceram. Int. 10, 14 (1984).CrossRefGoogle Scholar
3.Kijima, K. and Shirasaki, S., J. Chem. Phys. 65, 2668 (1976).CrossRefGoogle Scholar
4.Deeley, G.G., Herbert, J.M., and Moore, N.C., Power Met. 8, 145 (1961).CrossRefGoogle Scholar
5.Martin, J.E., Hsueh, C.H., and Evans, A.G., J. Am. Ceram. Soc. 70, 708 (1987).Google Scholar
6.Murakami, Y., Akiyama, K., Yamamoto, H., and Sakata, H., J. Ceram. Soc. Jap. 106, 35 (1998).CrossRefGoogle Scholar
7.Andrews, P. and Riley, F.L., J. Eur. Ceram. Soc. 7, 1095 (1991).CrossRefGoogle Scholar
8.Jacobson, N.S., J. Am. Ceram. Soc. 76, (1993).Google Scholar
9.Babili, G.N., Bellisi, A., and Vincenzini, P., J. Mater. Sci. 19, 1029 (1984).Google Scholar
10.Babili, G.N., Bellisi, A., and Vincenzini, P., J. Am. Ceram. Soc. 64, 578 (1984).Google Scholar
11.Mieskowski, D.M. and Sanders, W.A., J. Am. Ceram. Soc. 68, C161 (1985).Google Scholar
12.Park, H.J., Kim, H.W., and Kim, H.E., J. Am. Ceram. Soc. 81, 2130 (1998).CrossRefGoogle Scholar
13.Deal, B.E. and Grove, A.S., J. Appl. Phys. 36, 3770 (1965).CrossRefGoogle Scholar
14.Babili, G.N., Bellisi, A., and Vincenzini, P., J. Mater. Sci. 19, 3487 (1984).Google Scholar
15.Cinibulk, M.K. and Thomas, G., J. Am. Ceram. Soc. 75, 1044 (1992).Google Scholar
16.Badache, R. and Lancin, M., J. Eur. Ceram. Soc. 11, 369 (1992).CrossRefGoogle Scholar
17.Jakus, K., Ritter, J.E., and Rogers, W.P., J. Am. Ceram. Soc. 67, 471 (1984).CrossRefGoogle Scholar
18.Kim, H.E. and Moorhead, A.J., J. Am. Ceram. Soc. 73, 694 (1990).CrossRefGoogle Scholar
19.Riu, D.H., Choi, R., and Kim, H.E., J. Mater. Sci. 30, 3897 (1995CrossRefGoogle Scholar