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http://dx.doi.org/10.4191/KCERS.2006.43.8.509

Fabrication of SiC Fiber Reinforced Porous Reaction Bonded SiC Composite and Its Mechanical Properties  

Han, Jae-Ho (Multifunctional Ceramics Research Center, Korea Institute of Science and Technology)
Park, Sang-Whan (Multifunctional Ceramics Research Center, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.43, no.8, 2006 , pp. 509-514 More about this Journal
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.
Keywords
Reaction bonded SiC; SiC fiber reinforced composite; Porous material; Melt infiltration;
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