High Temeprature Strength Property of Continuous SiC Fiber Reinforced SiC Matrix Composites

SiC 장섬유 강화 SiC 기지 복합재료의 고온강도 특성

  • 신윤석 (동의대학교 대학원 기계공학부) ;
  • 이상필 (동의대학교 기계공학부) ;
  • 이진경 (동의대학교 기계공학부) ;
  • 이준현 (부산대학교 기계공학부)
  • Published : 2005.04.29

Abstract

The mechanical properties of $SiC_f/SiC$ composites reinforced with continuous SiC fiber have been investigated in conjunction with the detailed analysis of their microstructures. Especially, the effect of test temperature on the characterization of $SiC_f/SiC$ composites was examined. In this composite system, a braiding Hi-Nicalon SiC fibric was selected as a reinforcement. $SiC_f/SiC$ composites have been fabricated by the reaction sintering process, using the complex matrix slurry with a constant composition ratio of SiC and C particles. The characterization of $RS-SiC_f/SiC$ composites was investigated by means of SEM, EDS and three point bending test. Based on the mechanical property-microstructure correlation, the high temperature applicability of $RS-SiC_f/SiC$ composites was discussed.

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