| SiC Fiber 강화 다공질 반응 소결 탄화규소 Composite의 제조 및 기계적 특성 |
| 한재호, 박상환 |
| 한국과학기술연구원 복합기능세라믹연구센터 |
| Fabrication of SiC Fiber Reinforced Porous Reaction Bonded SiC Composite and Its Mechanical Properties |
| Jae-Ho Han, Sang-Whan Park |
| Multifunctional Ceramics Research Center, Korea Institute of Science and Technology |
|
|
|
|
|
| ABSTRACT |
|
In this study, chopped Hi-Nicalon SiC fiber Reinforced Porous Reaction Bonded SiC (RBSC) composites and it fabrication process were developed by using Si melt infiltration process. The porosity and average pore size in fabricated chopped SiC fiber reinforced porous RBSC composites were in the range of $30{sim}40%$ and $40-90{mu}m$, which mainly determined by the SiC powder size used as starting material and amount of residual Si in porous composites. The maximum flexural strength of chopped SiC fiber reinforced porous RBSC composite was as high as 80 MPa. The delayed fracture behavior was observed in chopped SiC fiber reinforced porous RBSC composites upon 3-point bending strength test. |
| Key words:
Reaction bonded SiC, SiC fiber reinforced composite, Porous material, Melt infiltration |
|
|
|
PDF Links
Full text via DOI
Download Citation 
