Abstract
Silicon nitride-silicon carbide nanocomposites have so far been fabricated by hot-pressing fine amorphous Si-C-N powder produced by CVD. This composite exhibited excellent strength and fracture toughness and maintained high strength to temperatures above 1200 °C. The current work deals with the fabrication of nanocomposites produced using mixtures of Si3N4 and nanosize SiC powders. Conventional processing techniques were used to optimize the dispersion of the SiC particles. Densification was achieved by pressureless sintering, gas pressure sintering and sinter/HIPping. Mechanical properties such as hardness, fracture toughness and strength at room temperature were assessed. The nanocomposites produced were compared with composites produced using alternative starting materials.
| Original language | English |
|---|---|
| Pages (from-to) | 257-264 |
| Number of pages | 8 |
| Journal | Mechanical and corrosion properties. Series A, Key engineering materials |
| Volume | 99-100 |
| Publication status | Published - 1995 |
| Event | Proceedings of the 10th Irish Materials Forum Conference IMF10 - Coleraine, Irel Duration: 1 Sep 1994 → 1 Sep 1994 |