Metals and materials international

The Korean Institute of Metals and Materials (대한금속재료학회)
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Process for Dense 2D SiC Fiber-SiC Matrix Composites

Kim, Young-Wook;Chun, Yong-Seong;Park, Ji-Yeon;Ryu, Woo-Seog;Park, Dong-Soo

  • Published : 20070600
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Abstract

A new process using SiC fiber fabrics and SiC tapes to produce dense 2D SiC fiber-SiC (SiC/SiC) composites is demonstrated. The strategy for fabricating the SiC/SiC composites involves: (i) alternately stacking the SiC fiber fabrics and SiC tapes at room temperature, (ii) pyrolyzing of the stacked composites, and (iii) hot-pressing the pyrolyzed composites. By controlling the hot-pressing temperature, it is possible to obtain dense 2D SiC/SiC composites with relative densities of > 98 %. The 2D SiC/SiC composites show no degradation of the SiC fibers and a higher mechanical strength.

Keywords

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