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Fabrication of Macroporous SiCN Ceramics from Mixed Polysilazanes

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Abstract:

Macroporous polymer-derived SiCN ceramics are fabricated directly by mixing polysilazane precursors followed with crosslinking and pyrolysis. Two kinds of polysilazanes namely polyvinylsilazane and polyhydrosilazane are mixed, crosslinked by 2, 2-Azo-bis-isobutyronitrile to form resins before pyrolyzed to form ceramics in argon flow at 1000°C. The density of the SiCN ceramic is 1.65 g/cm3 with corresponding porosity of 30 % compared to dense SiCN ceramics. SEM images show that the ceramics possess high porosity and homogeneous honeycomb-like macropores of ~2 μm. The porous SiCN exhibits good mechanical property with Vicker hardness of 11-13 GPa under a load of 0.2 kg.

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Periodical:

Key Engineering Materials (Volumes 602-603)

Pages:

384-387

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.384

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Online since:

March 2014

Authors:

Dong Su*, Xiao Yan, Feng Hou

Keywords:

Macroporous Ceramic, Polymer-Derived Ceramics, SiCN Ceramic

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] E. Kroke, Y. L. Li, C. Konetschny, et al., Mater. Sci. Eng. 26 (2000) 97-199.

Google Scholar

[2] G. Mera, A. Navrotsky, S. Sen, et al., J. Mater. Chem. A 1(2013) 3826-3836.

Google Scholar

[3] P. Colombo, J. R. Hellmann, Mat. Res. Innovat 6 (2002) 260-272.

Google Scholar

[4] A. R. Studart, U. T. Gonzenbach, E. Tervoort, et al., J. Am. Ceram. Soc. 89 (2006) 1771–1789.

Google Scholar

[5] Z. Taslicukur, C. Balaban, N. Kuskonmaz, J. Eur. Ceram. Soc. 27(2007)637-640.

Google Scholar

[6] P. Colombo, E. Bernardo, Compos. Sci. Technol. 63(2003) 2353-2359.

Google Scholar

[7] T. J. Fitzgerald, V. J. Michaud, A. Mortensen. J. Mater. Sci. 30(1995) 1037-1045.

Google Scholar

[8] P. Colombo, M. Modesti, J. Am. Ceram. Soc. 82 (1999) 573-578.

Google Scholar

[9] M. Fukushima, P. Colombo, J. Eur. Ceram. Soc. 32 (2012) 503–510.

Google Scholar

[10] Y. W. Kim, C. B. Park. Comp. Sci. Tech. 63(2003)2371-2377.

Google Scholar

[11] X. Bao, M. R. Nangrejo, M. J. Edirisinghe, J. Mater. Sci. 34(1999)2495-2505.

Google Scholar

[12] C. Vakifahmetoglu, P. Colombo, Adv. Eng. Mater. 10 (2008) 256-259.

Google Scholar

[13] N. Janakiraman, F. Aldinger, J. Eur. Ceram. Soc. 29 (2009) 163-173.

Google Scholar

[14] T. Rouxel, G. Massouras, G. D. Soraru, J. Sol–Gel Sci. Tech. 14 (1999) 87-94.

Google Scholar

[15] N. Janakiraman, F. Aldinger, J. Eur. Ceram. Soc. 30 (2010) 775-785.

Google Scholar

[16] D. Galusek, F. L. Riley, R. Riedel, J. Am. Ceram. Soc., 84 (2001) 1164-1166.

Google Scholar

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