Abstract
TiB2-TiCxN1-x composites were synthesized by arc-melting mixtures of TiB2, TiC and TiN powders in a N2 atmosphere at 60kPa. TiB2-TiCxN1-x composites were obtained at TiN contents below 20mol%, whereas TiB formed in the composites at higher TiN contents. TiB2-TiCxN1-x composites with a nominal composition of 36TiB2-44TiC-20TiN (mol%) had a rod-like eutectic structure, where the TiCxN1-x single-crystal rods dispersed in the TiB2 single-crystal matrix. The crystal orientation relationship between the TiB2 matrix and the TiCxN1-x rods was TiB2 (0001)//TiCxN1-x (111). Vickers hardness (Hv) of the rod-like eutectic composite was 22.5GPa.
Original language | English |
---|---|
Pages (from-to) | 2089-2094 |
Number of pages | 6 |
Journal | Journal of the European Ceramic Society |
Volume | 34 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2014 Jan 1 |
Keywords
- Eutectic composite
- Lamellar structure
- Rod-like structure
- Vickers hardness
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry