Densification and rain Growth of Alumina Heated by Microwave

Microwave로 가열한 알루미나의 소결 및 입성장 거동

  • 김도형 (한국과학기술원 무기재료공학과) ;
  • 오성록 (한국과학기술원 무기재료공학과) ;
  • 김종희 (한국과학기술원 무기재료공학과)
  • Published : 1992.04.01

Abstract

As compared with conventional sintering, rapid heating in microwave system could enhance sinterability and final properties of alumina with a very short sintering time. In this study microwave sintering was performed using zirconia brick as a reaction chamber which was positioned in a 2.45 GHz(700 W) multimode microwave cavity. Microwave-sintered alumina showed high density and smaller grain size than conventionally sintered alumina because the ratio of densification rate/grain growth rate was increased by rapid heating.

Keywords

References

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