Abstract
Co-continuous TiN/Al composites with different volume fractions of Al phase have been fabricated by the squeeze-casting method. TiN porous ceramics with different porosities were fabricated through carbothermal reduction by changing the content of TiN and were used as preforms. The outstanding mechanical properties were attributed to the absence of excessive interface reaction between TiN and Al for the co-continuous TiN/Al composites. With the increase of Al content in the composites, the flexural strength and the microhardness decreased, and the fracture toughness increased. The strengthening and toughening mechanism of composites included dislocation strengthening, ductile rupture, crack deflection, and secondary cracks.
| Original language | English |
|---|---|
| Pages (from-to) | 1306-1310 |
| Number of pages | 5 |
| Journal | Materials and Manufacturing Processes |
| Volume | 31 |
| Issue number | 10 |
| DOIs | |
| State | Published - 26 Jul 2016 |
Keywords
- Casting
- Composites
- Strengthening
- Toughening