Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of Frit Content on Microstructure and Flexural Strength of Porous Frit-Bonded Al2O3 Ceramics

Frit 함량이 다공질 Frit-Bonded 알루미나 세라믹스의 미세조직과 꺾임강도에 미치는 영향

  • Lim, Kwang-Young (Functional Ceramics Laboratory, Department of Materials Science and Engineering, The University of Seoul) ;
  • Kim, Young-Wook (Functional Ceramics Laboratory, Department of Materials Science and Engineering, The University of Seoul) ;
  • Song, In-Hyuck (Powder Materials Research Division, Korea Institute of Materials Science) ;
  • Kim, Hai-Doo (Powder Materials Research Division, Korea Institute of Materials Science) ;
  • Bae, Ji-Soo (YJC Co., Ltd.)
  • 임광영 (서울시립대학교 신소재공학과 기능성세라믹스연구실) ;
  • 김영욱 (서울시립대학교 신소재공학과 기능성세라믹스연구실) ;
  • 송인혁 (재료연구소(KIMS)) ;
  • 김해두 (재료연구소(KIMS)) ;
  • 배지수 ((주)와이제이씨)
  • Received : 2010.10.08
  • Accepted : 2010.11.09
  • Published : 2010.11.30
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Abstract

Porous frit-bonded alumina ceramics were fabricated using alumina and frit as raw materials. The effects of frit content and sintering temperature on microstructure, porosity, and flexural strength were investigated at low temperature of $750{\sim}850^{\circ}C$. Increased addition of frit content or higher sintering temperature resulted in improved flexural strength of porous frit-bonded alumina ceramics. It was possible to produce frit-bonded alumina ceramics with porosities ranging from 35% to 40%. A maximum strength of 52MPa was obtained at a porosity of ~38% when 90 wt% alumina and 10 wt% frit powders were used.

Keywords

References

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