Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Microstructure Control of Fibrous Monolithic Al2O3-ZrO2 Composites

섬유단상 Al2O3-ZrO2 세라믹 복합재료의 미세조직제어

  • Kim, Ki-Hyun (Chungnam Research Center for Nano Materials, School of Materials Engineering, Kong-ju National University) ;
  • Kim, Taek-Soo (Chungnam Research Center for Nano Materials, School of Materials Engineering, Kong-ju National University) ;
  • Lee, Byong-Taek (Chungnam Research Center for Nano Materials, School of Materials Engineering, Kong-ju National University)
  • 김기현 (공주대학교 신소재공학부, 충남나노소재연구센터) ;
  • 김택수 (공주대학교 신소재공학부, 충남나노소재연구센터) ;
  • 이병택 (공주대학교 신소재공학부, 충남나노소재연구센터)
  • Published : 2003.04.01
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Abstract

Fibrous monolithic control of$ Al_2$$O_3$ -$ZrO_2$composite was investigated by multi-pass extrusion process. To obtain sound $Al_2$$O_3$-X $O_2$sintered bodies, burning out and sintering process were carefully carried out. The sintered bodies showed continuous, fibrous monolithic microstructure without any swelling. Many microcracks were observed at the $Al_2$$O_3$-$ZrO_2$interfaces due to the mismatching of thermal expansion coefficient between $Al_2$$O_3$ and $ZrO_2$phase. Most of m- $ZrO_2$grains included twin defects such as (001), (010) and (011) type to accommodate the phase transformation induced stress.

Keywords

References

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Cited by

  1. Microstructure Control of Al2O3/ZrO2 Composite by Fibrous Monolithic Process vol.45, pp.2, 2004, https://doi.org/10.2320/matertrans.45.431