Nano-Indentation of SiC and Si3N4/SiC Ceramic Materials

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The present paper deals with the nano-indentation of SiC-micro and Si3N4/SiCmicro/ nano ceramic materials. The investigated SiC-micro and Si3N4/SiC-micro/nano ceramics were prepared by liquid phase sintering. Liquid phase was formed from different sintering additives (Y2O3, Yb2O3, Sm2O3). In the case of Si3N4/SiC-micro/nano ceramics the SiC nano-grains were created from SiNC amorphous powder. SiNC precursor decomposed to SiC and Si3N4 particles during sintering. The comparison of nano- and macro-hardness of investigated ceramic materials showed that nano-hardness is significantly higher. The indentation modulus correlated with the measured nano-hardness. Remarkable influence of grain boundaries and SiC nano-inclusions on hardness was observed.

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Periodical:

Edited by:

J. Dusza, R. Danzer and R. Morrell

Pages:

272-275

Citation:

M. Balog et al., "Nano-Indentation of SiC and Si3N4/SiC Ceramic Materials", Key Engineering Materials, Vol. 290, pp. 272-275, 2005

Online since:

July 2005

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$38.00

[1] Sciti, D., Guicciardi, S., Bellosi, A., J. Eur. Ceram. Soc., 21 (2001) 621-632.

[2] Hirosaki N., Okada A., Mitomo M., J. Mater. Sci., 25 (1990) 1872-1876.

[3] Choi, H. -J., Lee, J. -G., Kim, Y. -W., J. Am. Ceram. Soc., 85 (2002) 2281-2286.

[4] Zhou, Y., Hirao, K., Toriyama, M., Yamauchi, Y., Kanzaki, S., J. Am. Ceram. Soc., 84 (2001) 1642-1644.

[5] Balog M., Šajgalík P., Lenčéš Z., Monteverde F., Solid State Phenom., 90-91 (2003) 273-279.

[6] Herrmann, M., Schubert, C., Rendtel, A., and Hübner, H.: J. Am. Ceram. Soc. 81 (1988) 1094.

[7] Šajgalík P., Hnatko M., Lofaj F., Hvizdoš P., Dusza J., Warbichler P., Hofer F., Riedel R., Lecomte E., Hoffman M.J., J. Eur. Ceram. Soc., 20 (2001) 453-462.

DOI: https://doi.org/10.1016/s0955-2219(99)00176-4

[8] Šajgalík P., Hnatko M., Lenčéš Z., Warbichler P., Hofer F., Z. Metallkd. 92 (2001) 8 937-941.

[9] Lankford, J., Davidson, D.L., Indentation plasticity and microfracture in silicon carbide. J. Mater. Sci., 1979, 14 (7), 1669-75.

DOI: https://doi.org/10.1007/bf00569289

[10] Schneider, S. J., Eng. materials handbook, Volume 4, ASM International, USA, 1987, p.808.

[11] Vassen, R., Stover, D., J. Am. Ceram. Soc., 82 (1999) 2585-2593.

[12] Hnatko M., Balog M., Šajgalík P., Key Eng. Mater., 264-268 (2004) 2305-2310.

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