Process for dense 2D SiC fiber-SiC matrix composites |
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| Authors: | Young-Wook Kim Yong-Seong Chun Ji Yeon Park Woo Seog Ryu Dong-Soo Park |
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| Affiliation: | 1.Department of Materials Science and Engineering,The University of Seoul,Seoul,Korea;2.Division of Nuclear Materials Technology Development,Korea Atomic Energy Research Institute,Daejeon,Korea;3.Department of Future Technology,Korea Institute of Machinery and Materials,Gyeongnam,Korea |
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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. |
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