Contact Fracture Behaviors of Ti3SiC2 Synthesized by Hot Pressing Using TiCx and Si Powder Mixture

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The contact fracture behaviors of fine-grained Ti3SiC2 and coarse-grained high purity Ti3SiC2 are examined by the Hertzian indentation and Vickers indentation technique. The Vickers hardness of bulk Ti3SiC2 is as low as 5.3~6.3 Gpa, and the Hertzian contact stress-strain curves for Ti3SiC2 deviate much from linearity, which resembles the fracture behavior of a ductile metal rather than a brittle ceramic. The contact damages by both Vickers indentation and Hertzian indentation reveal a fairly good plastic deformation nature of Ti3SiC2. Un-reacted TiCx in fine-grained Ti3SiC2 may impede the plastic deformation by slip along basal plan inside Ti3SiC2 grain, making Ti3SiC2 less plastic under loading.

Info:

Periodical:

Materials Science Forum (Volumes 486-487)

Edited by:

Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee

Pages:

217-220

Citation:

S. S. Hwang et al., "Contact Fracture Behaviors of Ti3SiC2 Synthesized by Hot Pressing Using TiCx and Si Powder Mixture", Materials Science Forum, Vols. 486-487, pp. 217-220, 2005

Online since:

June 2005

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$38.00

[1] J. Lis, R. Pampuch, J. Piekarch and L. Stobierski: Ceram. Inter. Vol. 19 (1993), p.219.

[2] M. W. Barsoum, T. El-Raghy and L. U. J. T. Ogbuji: J. Electrochem. Soc. Vol. 144 (1997), p.2508.

[3] M. W. Barsoum, L. H. Ho-Duc, M. Radovic, and T. El-Raghy: J. Electrochem. Soc. Vol. 150 (2003), p. B166.

[4] M. W. Barsoum and T. El-Raghy: J. Am. Ceram. Soc. Vol. 79.

[7] (1996), p. (1953).

[5] Y. Zhou, Z. Sun and J. Eur: Ceram. Soc. Vol. 21 (2001), p.1007.

[6] M. W. Barsoum, L. Farber and T. El-Raghy: Meta. Mat. Trans. A Vol. 30A (1999), p.1727.

[7] S. S. Hwang, S. W. Park and C. M. Kim: Mater. Sci. Forum Vol. 439 (2003), p.297.

[8] J. F. Li, W. Pan, F. Sato and R. Watanabe: Acta mater. Vol. 49 (2001), p.937.

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