Properties and Application of Oriented Porous SiC as Transpiration Cooling Materials


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This paper describes the fabrication of porous reaction-bonded SiC ceramics with radial directed pores and the application of these materials to transpiration cooling system of rocket engines. A special mold is designed for freeze-casting process to prepare SiC cylinders with radial directed pores. Green bodies with well-oriented pore structure are obtained from slurry with solid loading up to 47vol%. The pore size is in the level of several tens micron. Green bodies with various porosities are infiltrated with different amount of liquid Si. The intrinsic permeability of each sample is measured with air as flowing media. It is concluded that permeability has relationship with not only the porosity but also the pore structure of samples.



Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong




J. Tang et al., "Properties and Application of Oriented Porous SiC as Transpiration Cooling Materials", Key Engineering Materials, Vols. 336-338, pp. 1109-1112, 2007

Online since:

April 2007




[1] C. L. Zhang, Z. P. Zhang, J. Y. Yuan and B. B. Zhang: Aerospace Shuanghai Issue 2(2002), p.8.

[2] J. B. Esgar: NACA RM E52G01. Sept. 8, (1952).

[3] E. Serbest, D. Greuel and O. J. Haidn: AIAA-2001-3410, 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Salt Lake City, Utah, July 8-11 (2001).


[4] T. Fukasawa, Z. -Y. Deng, M. Ando, T. Ohji and Y. Goto: J. Mater. Sci. Vol. 36 (2001), p.2523.

[5] T. Fukasawa, Z. -Y. Deng, M. Ando and T. Ohji: 25th Annual Conference on Composites, Advanced Materials and Structures: B Vol. 22 (2001), p.153.

[6] J. Tang, Y.F. Chen, H. Wang, H.L. Liu and Q.C. Fan: Key Engineering Materials Vols. 280-283 (2005), p.1287.