Abstract
The mechanical properties of the interfaces of two families of chemical vapor infiltration SiC/SiC composites, advanced Tyranno-SA and Hi-Nicalon fibers reinforced SiC/SiC composites with various carbon and SiC/C interlayers, were investigated by single fiber push-out/push-back tests. Interfacial debonding and fibers sliding mainly occurred adjacent to the first carbon layer on the fibers. The interfacial debonding strengths and frictional stresses for both Tyranno-SA/SiC and Hi-Nicalon/SiC composites were correlated with the first carbon layer thickness. Tyranno-SA/SiC composites exhibited much larger interfacial frictional stresses compared to Hi-Nicalon/SiC composites. This was assumed to be mainly contributed by the rather rough surface of the Tyranno-SA fiber.
| Original language | English |
|---|---|
| Pages (from-to) | 1088-1092 |
| Number of pages | 5 |
| Journal | Journal of Nuclear Materials |
| Volume | 307-311 |
| Issue number | 2 SUPPL. |
| DOIs | |
| State | Published - Dec 2002 |
| Externally published | Yes |