Hostname: page-component-7b7567c8c-2n9c9 Total loading time: 0 Render date: 2026-11-14T21:18:06.522Z Has data issue: false hasContentIssue false
  • English
  • Français

Sintering Process and Mechanical Properties for Oxide-Based Nanocomposites

Published online by Cambridge University Press:  25 February 2011

Koichi Niihara,
Atsushi Nakahira and
Masahiro Inoue
Koichi Niihara
Affiliation:
The Insititute of Scientific and Industrial Research, Osaka University, 8–1, Mihogaoka, Ibaraki, Osaka 567, Japan.
Atsushi Nakahira
Affiliation:
The Insititute of Scientific and Industrial Research, Osaka University, 8–1, Mihogaoka, Ibaraki, Osaka 567, Japan.
Masahiro Inoue
Affiliation:
The Insititute of Scientific and Industrial Research, Osaka University, 8–1, Mihogaoka, Ibaraki, Osaka 567, Japan.
Get access

Abstract

Oxide-based Al2O3/SiC nanocomposites, in which the nanometer-sized nonoxide SiC particles are dispersed mainly within the matrix Al2O3 grains, were fabricated by the normal powder metallurgical methods. High resolution transmission electron microscopic observation showed that the nanometer sized SiC particles were directly bonded to the matrix Al2O3 grain without any reacting layers. The nano-sized SiC dispersions gave the significant improvement of mechanical properties such as fracture strength over 1000 MPa and no degradation of its strength up to 1000°C for Al2O3/SiC nanocomposites, was observed. The sintering process and the correlation between mechanical properties and micro/nanostructure will be discussed for this nanocomposite.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992, 589
Copyright
Copyright © Materials Research Society 1992

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

1. Izaki, K., Hakkei, K., Ando, K. and Niihara, K., in Ultrastructure Processing and Advanced Ceramics, eds by Mackenzie, J. D. and Ulrich, D. R., 891–900 (John Wiley & Sons, NY, 1988).Google Scholar
2. Wakai, F., Kodama, Y., Sakaguchi, S., Murayama, N., Izaki, K., and Niihara, K., Nature, 344, 421–422(1990).CrossRefGoogle Scholar
3. Niihara, K., Suganuma, K., Nakahira, A. and Izaki, K., J. Mater. Sci. Lett. 10, 598–599(1990)Google Scholar
4. Niihara, K., Izaki, K. and Kawakami, T., J. Mater. Sci. Lett., 10, 112–114(1990).Google Scholar
5. Niihara, K. and Nakahira, A., Proc. of MRS Meeting on Advanced Composites, 129–134(Plenum, NY, 1988).Google Scholar
6. Niihara, K., Electronic Ceramics, 9, 44–48(1989).Google Scholar
7. Niihara, K., Nakahira, A. and Hirai, T., J. Amer. Ceram. Soc, 67, Cl–C2 (1984).Google Scholar
8. Seising, J., J. Amer. Ceram. Soc, 44, 419(1961).Google Scholar
9. Niihara, K., J. of The Ceram. Soc. Jpn., 99, 974–982(1991).Google Scholar
10. Rice, R. W., Proc. Brit. Ceram. Soc, 20, 205–215(1972).Google Scholar
11. Evans, A. G. and Rana, A., Acta Metall., 28, 129–139(1980).Google Scholar