Abstract
Silicon carbide fiber-reinforced, silicon carbide matrix composite is potential structural material for use in very severe environments in advanced energy systems. In the current work, irradiation tolerance of advanced SiC fiber-reinforced SiC-matrix composite fabricated by a chemical vapor infiltration process was studied using a dual-beam ion irradiation technique. Microstructural examination of the irradiated material was performed by transmission electron microscopy. Cross-sectional thin films were prepared using a focus ion beam micro-processing technique. Composites with the advanced low-oxygen, near-stoichiometric SiC fiber and beta-SiC matrix exhibited superior radiation resistance. However, further study of the synergistic effect of atomic displacement and transmutant helium production, especially near the fiber-matrix interfaces is recommended.
| Original language | English |
|---|---|
| Pages (from-to) | 325-332 |
| Number of pages | 8 |
| Journal | Ceramic Engineering and Science Proceedings |
| Volume | 20 |
| Issue number | 4 |
| State | Published - 1999 |
| Externally published | Yes |
| Event | Proceedings of the 1999 23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - Cocoa Beach, FL, USA Duration: Jan 25 1999 → Jan 29 1999 |