Abstract
The materials used in this study were unidirectional Hi-NicalonTM SiC fibers reinforced SiC matrix composites. SiC/SiC composites were fabricated by chemical vapor infiltration (CVI) method. Fibers were coated with either pyrolytic carbon, multiple SiC layers or `porous' SiC by CVI method prior to matrix deposition. They were irradiated in the High Flux Isotope Reactor at damage level of 0.5 dpa. Irradiation temperatures were either 300 °C or 500 °C. Interfacial shear properties and mechanical properties were evaluated. The correlation between interfacial shear properties and mechanical properties was examined. The `porous' SiC interface showed a strong bond when compared with the pyrolytic C and multiple SiC interface in the non-irradiated state. The interfacial shear properties were substantially degraded by irradiation with the `porous' SiC showing the most degradation.
| Original language | English |
|---|---|
| Pages (from-to) | 376-379 |
| Number of pages | 4 |
| Journal | Journal of Nuclear Materials |
| Volume | 283-287 |
| Issue number | PART I |
| DOIs | |
| State | Published - Dec 2000 |
| Externally published | Yes |
Funding
The authors would like to thank Jeff Bailey for assistance with the irradiation. This work was supported by Japan–USA program of irradiation test for fusion research (JUPITER) and by Core Research for Evolutional Science and Technology (CREST) program under the title of `R&D of environment conscious multi-functional structural materials for advanced energy systems'.
| Funders | Funder number |
|---|---|
| Core Research for Evolutional Science and Technology |