Preparation of Silicon Carbide Reticulated Porous Ceramics by Organic Foam Impregnation

Abstract:

Silicon carbide (SiC) reticulated porous ceramics were prepared by organic foam impregnation, using polyurethane sponges as template and deionized water or alcohol as slurry solvent. The sintering behavior, microstructures and apparent density of struct of the SiC reticulated porous ceramics fabricated using the aqueous slurry under different sintering aids and sintering process and the alcohol slurry were investigated comparatively. The experimental results showed that both the microstructures and apparent density of the samples fabricated by Y₂O₃+AlN as sintering aid were better than those Al₂O₃ as sintering aid while the aqueous slurry, and the samples fabricated by two-step process (firstly heated to 700 oC in air furnace, and then sintered at 1800 oC in Ar atmosphere) while Y₂O₃+AlN as sintering aid obtained the optimal properties. In particular, the samples fabricated by the alcohol slurry and reaction sintering process were provided better properties than the aqueous slurry.

• Periodical: Materials Science Forum (Volume 814)
• Pages: 574-578
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.814.574
• Online since: March 2015
• Authors: Xiang Zhao Zhang, Ren Juan Wang, Gui Wu Liu, Hai Cheng Shao, Kuo Zhang, Zhong Qi Shi, Guan Jun Qiao
• Keywords: Apparent Density, Organic Foam Impregnation, Reticulated Porous Ceramics, Silicon Carbide (SiC)

References

[1] X.W. Zhu, D.L. Dong, S.H. Tan, S.H. Tan. J Inorg Mater, 17 (2002) 79-89.

[2] T. Ohji. Handbook of advanced ceramics. Japan: National Institute of Advanced Industrial Science and Technology, (2013).

[3] G.J. Jiang, M.H. Wang, Y.Y. Liu et al. Fabrication of Silicon Carbide Reticulated Porous Ceramics through Organic Foam Infiltration Process. Materials Science Forum, 745 (2013) 646-651.

DOI: 10.4028/www.scientific.net/msf.745-746.646

[4] I.H. Song, I.M. Kwon, H.D. Kim, et al. Processing of microcellular silicon carbide ceramics with a duplex pore structure. Journal of the European Ceramic Society, 30 (2010) 2671-2676.

DOI: 10.1016/j.jeurceramsoc.2010.04.027

[5] K.H. Lee, S.K. Lee, K.S. Jeon Photoluminescent properties of silicon carbide and porous silicon carbide after annealing. Appl Sur Sci, 25 (2009) 4414-4420.

DOI: 10.1016/j.apsusc.2008.11.047

[6] R. Dhiman, V. Petrunin, K. Rana, et al. Conversion of wooden structures into porous SiC with shape memory synthesis. Ceram Int, 37 (2011) 3281-3289.

DOI: 10.1016/j.ceramint.2011.05.124

[7] X.M. Yao, S.H. Tan, Z.R. Huang, et al. Effect of recoating slurry viscosity on the properties of reticulated porous silicon carbide ceramics. Ceram Int, 32 (2006) 137-142.

DOI: 10.1016/j.ceramint.2005.01.008

[8] A. R. Studart, U.T. Gonzenbach, E. Tervoort, et al. Processing routes to macroporous ceramics: a review. J Am Ceram Soc, 89 (2006) 1771-1789.

DOI: 10.1111/j.1551-2916.2006.01044.x

[9] S. Akpinar, I.M. Kusoglu, O. Ertugrul, et al. Silicon carbide particle reinforced mullite composite foams. Ceram Int, 38(2012) 6163-6169.

DOI: 10.1016/j.ceramint.2012.04.067

[10] S.Q. Ding, S.M. Zhu, Y.P. Zeng, et al. Effect of Y2O3 addition on the properties of reaction-bonded porous SiC ceramics. Ceram Int, 32 (2006) 461-466.

DOI: 10.1016/j.ceramint.2005.03.024