Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-26T09:40:49.399Z Has data issue: false hasContentIssue false
  • English
  • Français

Hot-Isostatic Pressing of Silicon Carbide Based Multiphase Composed Materials

Published online by Cambridge University Press:  15 February 2011

Dongliang Jiang  and
Jihong She
Dongliang Jiang
Affiliation:
Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Ding-Xi Road, Shanghai 200050, Peoples Republic of China
Jihong She
Affiliation:
Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Ding-Xi Road, Shanghai 200050, Peoples Republic of China
Get access

Abstract

Silicon carbide (SiC) based ceramic composites with improved fracture toughness and increased flexure strength have been developed by incorporating some other non-oxide and oxide particles or some whiskers and fibres. Hot-Isostatic Pressing (HIP) has been identified as an important technology for strengthening carbide by surface modification. In this paper, Hot-pressed SiC-TiC with different densities and HIP-SiC/SiC(w) composites were post HIPped under a N2-pressure of 200MPa at 1850°C for lh. The results showed that the open pores were closed and physical and mechanical properties such as density, flexure strength and toughness were obviously improved. For the SiC-TiC composites, the final density can be reached above 98% theoretical density, flexure strength and fracture toughness were increased by 100% and 30-50%, respectively. For the SiC/5vol%-SiC(w) composites, the final flexure strength and fracture toughness were increased from 595 MPa and 6.7 MPa m1/2 to 920MPa and 8.5 MPa m1/2 separately. A possible reaction-HIP densification mechanism for SiC ceramics with open pores is proposed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 365: Symposium M – Ceramic Matrix Composites–Advanced High-Temperature Structural Materials , 1994 , 159
Copyright
Copyright © Materials Research Society 1995

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

1. Wei, G.C. and Becher, P.F., J. Am. Ceram. Soc. 67, 571 (1984).Google Scholar
2. Janney, M.A., Am. Ceram. Soc. Bull. 65, 357 (1986).Google Scholar
3. Endo, H., Ueki, M. and Kubo, H., J. Mater. Sci. 26, 3769 (1991).Google Scholar
4. Janney, M.A., Am. Ceram. Soc. Bull. 66, 322 (1987).Google Scholar
5. Jiang, D.L., Wang, J.H., li, Y.L. and Ma, L.T., Mater. Sci. Eng. A 109, 405 (1989).Google Scholar
6. McMurtry, C.H., Boecker, W.D., Seshadri, S.G., Zanghi, J.S. and Garnier, J.E., Am. Ceram. Soc. Bull. 66, 325 (1987).Google Scholar
7. Watson, G.K., Moore, T.J. and Millard, M.L., Am. Ceram. Soc. Bull. 64, 1253 (1985).Google Scholar
8. She, J.H., Jiang, D.L. and Greil, P., J. Europ. Ceram. Soc. 7, 243 (1991).Google Scholar
9. Larker, H.T., Hermansson, L. and Adlerborn, J., Indust. Ceram. 8, 17 (1988).Google Scholar
10. Zimmerman, F.X., Powder Metall. Int. 16, 27 (1984).Google Scholar
11. Hunold, K., Powder Metall. Int. 21, 22 (1989).Google Scholar
12. Druschitz, A.P. and Schroth, J.G., J. Am. Ceram. Soc. 72, 1595 (1989).Google Scholar
13. She, J.H., Jiang, D.L., Tan, S.H. and Guo, J.K., Mater. Res. Bull. 26, 1277 (1991).Google Scholar
14. Barin, L. and Knacke, O., Thermochemical Properties of Inorganic Substances, 1973.Google Scholar
15. Ryshkewitch, E., J. Am. Ceram. Soc. 36, 65 (1953).Google Scholar