Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of Interlayer Thickness on Mechanical Properties of Nicalon-Fiber-Reinfored SiC Composites

Nicalon 섬유강화 SiC 복합재료에서 섬유 Coating층의 두께가 기계적 성질에 미치는 영향

  • 김민수 (연세대학교 공과대학 세라믹공학과) ;
  • 김영욱 (KIST 구조세라믹스연구실) ;
  • 이준근 (KIST 구조세라믹스연구실) ;
  • 정덕수 (KIST 구조세라믹스연구실)
  • Published : 1993.07.01
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Abstract

Interfacial shear strength plays an important role in determining the mechanical properties of a fiber-reinforced ceramic composites. In this study, the effect ofinterlayer thickness on mechanical properties of Nicalon-fiber-reinforced SiC composites fabricated via polymer solution infiltration/chemical vapor infiltration (PSI/CVI) was studied. It was found that the flexural strength and fracture toughness of the composites were increased with the interlayer thickness and showed maximum value at the interlayer thickness of 0.66${\mu}{\textrm}{m}$. Typical flexural strength and fracture toughness of Nicalon-fiber-reinforced SiC composites with interlayer thickness of 0.66${\mu}{\textrm}{m}$ were 391.7$\pm$34.6MPa and 15.1$\pm$1.8MPa.m1/2, respectively.

Keywords

References

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