Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Grain Growth Behavior in Alumina during Sinter-HIP Process

Sinter-HIP 소결에 의한 알루미나의 입자성장 거동

  • Park, Hoon (Dept. of Ceramics Engineering, Kangnung National University) ;
  • Park, Sang-Yeup (Dept. of Ceramics Engineering, Kangnung National University)
  • 박훈 (강릉대학교 세라믹공학과) ;
  • 박상엽 (강릉대학교 세라믹공학과)
  • Published : 2000.11.01
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Abstract

알루미나의 소결시 외부압력이 알루미나의 입자성장에 미치는 영향을 sinter-HIP을 통해 고찰하였다. 알루미나 입자는 HIP 초기에 일정하게 빠른 속도로 성장하였으나 HIP 처리시간이 30분을 경과한 이후에는 완만한 속도로 성장하였다. 상압소결된 알루미나를 HIP 처리시 입자성장 속도지수는 상압소결시와 동일한 n=3을 나타내었으나 알루미나의 입자성장속도는 HIP 처리시의 외부 압력으로 인해 감소하였다. Sinter-HIP 소결시 순수 알루미나와 M햬가 첨가된 알루미나의 경우 계산된 속도상수 k는 대략적으로 각각 9.2×10/sup -20/ ㎥/s, 2.6×10/sup -21/ ㎥/s 이었다.

Keywords

References

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