Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Mechanical Properties of $Al_2O_3-SiC$ Whisher Composite Materials

$Al_2O_3-SiC$ 위스커 복합재료의 기계적 특성

  • 강대갑 (대한중석광업주식회사) ;
  • 권오종 (경북대학교 금속공학과) ;
  • Published : 1986.03.01
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Abstract

Mechanical properties of $Al_2O_3$ based composite ceramics reinforced by SiC whiskers up to 40% by volume we-re investigated. Specimens were hot pressed at $1, 500^{\circ}C$ under 28.5MPa for 30min in Ar atmosphere. Porosities room temperaturefracture toughnesses and flexural strengths up $1, 000^{\circ}C$ were measured. Porosities were increa-sed as the SiC whisker cortent increased. After compensating the effect of porosities that means extrapolated in zero porosities the reinforced composites exhibited increases in flexural strength and fracture toughness as the whi-sker content increased, .

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References

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