Paper Title:
Contact Fracture Behaviors of Ti3SiC2 Synthesized by Hot Pressing Using TiCx and Si Powder Mixture
| Periodical | Materials Science Forum (Volumes 486 - 487) |
|---|---|
| Main Theme | Eco-Materials Processing & Design VI |
| Edited by | Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee |
| Pages | 217-220 |
| DOI | 10.4028/www.scientific.net/MSF.486-487.217 |
| Citation | Sung Sic Hwang et al., 2005, Materials Science Forum, 486-487, 217 |
| Online since | June, 2005 |
| Authors | Sung Sic Hwang, Sang Whan Park, Seong Jai Cho, Dong Bok Lee |
| Keywords | Fracture Behaviour, Hertzian Indentation, Titanium Silicon Carbide, Vickers Indentation |
| Price | US$ 28,- |
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Abstract
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.
