Abstract
Particulate ceramic composites composed of a combustion synthesized β′ SiAlON matrix and dispersed MoSi2 particles were hot pressed at 1600 °C in a nitrogen atmosphere. The physical and mechanical properties of the composites containing 30 vol% MoSi2 were evaluated. The average four-point bend strength, fracture toughness, and Vickers hardness (HV) of the composites were approx. 500 MPa, 4 MPa √m and 12 GPa, respectively. Fracture toughness of the combustion synthesized β′ SiAlON (2.5 MPa √m) was enhanced by the added MoSi2 particles. The composites showed improved electric conductivity and oxidation resistance over the monolithic β′ SiAlON.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 295-299 |
| Number of pages | 5 |
| Journal | Ceramic Engineering and Science Proceedings |
| Volume | 17 |
| Issue number | 3 |
| State | Published - 1996 |
| Externally published | Yes |
| Event | Proceedings of the 1996 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A - Cocoa Beach, FL, USA Duration: Jan 7 1996 → Jan 11 1996 |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry