Abstract
The microstructure and the fracture characteristics of reaction-sintered SiC/SiC composites was investigated by means of electron microscopy and three-point bending tests. It was found that the matrix morphology of the SiC/SiC composites is composed of three different phases, crystallized β-SiC, unreacted carbon; and isolated silicon. TEM analysis revealed that the unreacted carbon phase is finely distributed in the matrix region. The SiC/SiC composite displays a noncatastrophic failure behavior with an average fracture energy of about 3.2 kJ/m2. The average flexural stress of the SiC/SiC composites is about 330 MPa.
| Original language | English |
|---|---|
| Pages (from-to) | 153-157 |
| Number of pages | 5 |
| Journal | Scripta Materialia |
| Volume | 44 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 5 2001 |
| Externally published | Yes |
Funding
This study is supported by CREST-ACE (Core Research for Evolutional Science and Technology/Advanced Material Systems for Energy Conversion) program sponsored by Japan Science and Technology Corporation (JST). The reaction sintering process was performed by Ms S. Suyama and Dr Y. Itoh at Power & Industrial Systems R&D Center of Toshiba Corporation.
| Funders | Funder number |
|---|---|
| CREST-ACE | |
| Japan Science and Technology Corporation |