Abstract
SiC fiber reinforced SiC matrix composite (SiC/SiC composite) has been developed by polymer impregnation and pyrolysis (PIP) method, which consists of impregnation, curing, consolidation, and re-impregnation and pyrolysis. As a prospective approach to fabricate a high performance composite, consolidation conditions, such as curing temperature to make a green body, pressure and heating rate during consolidation, were systematically controlled for effective consolidation. Because of its advantage in controlling physical characteristic, polyvinylsilane (PVS) that is liquid thermosetting organo-silicic compound was utilized as the matrix precursor. Based on the pyrolytic behavior of PVS, effects of the process conditions on microstructure of the consolidated bodies were accurately characterized. To relate those microstructure with mechanical property, flexural tests were performed for the composites after multiple PIP processing. Consequently, process conditions to make a high performance composite could be appeared. Structural conditions to be optimized for further improvement in mechanical and environmental properties were also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 2179-2188 |
| Number of pages | 10 |
| Journal | Composites Science and Technology |
| Volume | 62 |
| Issue number | 16 |
| DOIs | |
| State | Published - Dec 2002 |
| Externally published | Yes |
Funding
This work is performed as a part of ‘R&D of Composite Materials for Advanced Energy Systems' research project, supported by Core Research for Evolutional Science and Technology (CREST). The authors are grateful to Dr. M. Itoh (Mitsui chemicals, inc.) for providing polyvinylsilane.
| Funders | Funder number |
|---|---|
| Core Research for Evolutional Science and Technology |
Keywords
- A. Ceramic-matrix composites (CMCs)
- A. Preceramic polymer
- B. Curing
- B. Mechanical properties
- B. Porosity