Hostname: page-component-5c6d5d7d68-wp2c8 Total loading time: 0 Render date: 2024-08-15T05:35:44.691Z Has data issue: false hasContentIssue false
  • English
  • Français

Modeling the Flow of Molten Silicon in Porous Carbon Preforms and the Subsequent Formation of Silicon Carbide

Published online by Cambridge University Press:  15 February 2011

G. Rajesh ,
Ram B. Bhagat  and
Emily Nelson
G. Rajesh
Affiliation:
The Pennsylvania State University, Engineering Science and Mechanics Department, University Park, PA 16802
Ram B. Bhagat
Affiliation:
The Pennsylvania State University, Engineering Science and Mechanics Department, University Park, PA 16802
Emily Nelson
Affiliation:
NASA Lewis Research Center, Cleveland, OH 44135-3191
Get access

Extract

Ceramic matrix composites (CMCs) are being considered for a broad range of aerospace applications that include various structural components for the aircraft engine and the space shuttle main engine. Use of silicon-based CMCs which have high thermal conductivity, allows for improvements in fuel efficiency due to increased engine temperatures and pressures, which in turn generate more power and thrust. Furthermore, CMCs offer significant potential for raising the thrust-to-weight of gas turbine engines by tailoring directions of high specific reliability using design-based fiber architecture. One of the low-cost processing techniques for the silicon-based CMCs is the reactive melt infiltration [1] of silicon into the preform of carbon-coated silicon carbide fiber. However, fabrication of high performance SiC/SiC composites requires a deeper understanding of the infiltration kinetics such that fibers are protected from adverse reaction with the molten metal, that the preform is thoroughly infiltrated, and that there is no residual silicon left unreacted.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 365: Symposium M – Ceramic Matrix Composites–Advanced High-Temperature Structural Materials , 1994 , 147
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. Hillig, W. B., Mehan, R. L., Morelock, C. R., DeCarlo, V. J., and Laskow, W., Am. Ceram. Soc. Bull., 54 [12], 1054 (1975)Google Scholar
2. Brittin, W. E., J. Appl. Physics, 17, 37 (1946)Google Scholar
3. Edwards, G. R. and Olson, D. L., Defense Technical Information Center (DTIC), Technical Report (‘The infiltration kinetics of Aluminum in Silicon Carbide compacts’), July 1987 Google Scholar
4. Martins, G. P., Olson, D. L., and Edwards, G. R., Met. Trans. B, 19B, 95 (1988)Google Scholar
5. Mortensen, A. and Cornie, J. A., Met. Trans. A, 18A, 1160 (1987)Google Scholar
6. Nourbaksh, S., Liang, F. L., and Margolin, H., Met. Trans. A, 20A, 1861 (1989)Google Scholar
7. Nourbaksh, S., Liang, F. L., and Margolin, H., Materials Research Society Symposium Proceedings, 133, 459 (1989)Google Scholar
8. Nourbaksh, S., Liang, F. L., and Margolin, H., Met. Trans. A, 21A, 213 (1990)Google Scholar
9. Bhagat, R. B. and Singh, M., In Situ Composites and Technology, ‘Modeling of the infiltration kinetics for the in-situ processing of inorganic composites’, edited by Singh, M. and Lewis, D., Materials Week '93, Oct. 17-21, 1993, Pittsburgh, Pennsylvania Google Scholar
10. Astrom, B. Tomas, Pipes, R. Byron, and Advani, Suresh G., J. Comp. Mat., 26 [9], 1351 (1992)Google Scholar
11. Gebart, B. R., J. Comp. Mat., 26 [8], 1100 (1992)Google Scholar
12. Cai, Zhong, J. Comp. Mat., 26 [9], 1310 (1992)Google Scholar
13. Chan, A. W., Larive, D. E., and Morgan, Roger J., J. Comp. Mat., 27 [10], 996 (1993)Google Scholar
14. Messner, R. P. and Chiang, Yet-Min, J. Am. Ceram. Soc., 73 [5], 1193 (1990)Google Scholar
15. Pampuch, R., Walasek, E., and Bialoskorski, J., Ceram. Int., 12, 99 (1986)Google Scholar