Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Study on the Preparation of Fine Powder and Synthesis of (1-x) ZrO2-xY2O3 Systems

(1-x) ZrO2-xY2O3계 미분말의 합성 및 소결체의 제조에 관한 연구

  • 안영필 (한양대학교 무기재료공학과) ;
  • 김복희 (전북대학교 재료공학과) ;
  • 성상현 (한양대학교 무기재료공학과)
  • Published : 1987.03.01
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Abstract

This study was about to make zirconia ceramics with yttria, using spraying precipitation method for the purpose of powder control. The powder properties and the characterization of sintered body, were studied. As the results, 1. The synthesized powder had homogeneity of spherical shape, and average particle size was 2-3 um. 2. Crystallization temperature increased with Y2O3 content. 3. Apparent density of sintered body (fired above 1500$^{\circ}C$) was higher than 98% of theoretical value in 3 mol% Y2O3 content. 4. High KIC values(19kg/㎣/2) in 3 mol % Y2O3 content resulted from sintering density increasement.

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References

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