Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effects of Composition and Additives on the Mechanical Characteristics of 3Y-TZP

3Y-TZP의 기계적 특성에 미치는 산화물 조성 및 첨가제의 영향

  • Park, Mi-Jung (Department of Materials Science and Engineering, Kyungnam University) ;
  • Yang, Seong-Koo (The Center for Instrumental Analysis in Kyungnam University) ;
  • Kang, Jong-Bong (Department of Advanced Materials Engineering, Kyungnam University)
  • 박미정 (경남대학교 재료공학과) ;
  • 양성구 (경남대학교 공동기기센터) ;
  • 강종봉 (경남대학교 신소재공학과)
  • Published : 2006.10.31
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Abstract

Monoclinic zirconia and yttria were mixed with a stoichiometric composition of 3Y-TZP (3 mol% Yttria-stabilized Tetragonal Zirconia Polycrystal). The specimen was sintered at 1350$\sim$1450$^{\circ}C$ and mechanical characterization and microstructure analysis were conducted. Microhardness and fracture toughness were shown as 1357.4 Hv and 8.56 MPa $m^{1/2}$. respectively. Without alumina, they were 1311 Hv and 10.02 MPa $m^{1/2}$ respectively. By mixing two different oxides, it was possible to obtain high values of microhardness and fracture toughness. It was possible that was turned out nano-scale particle using the co-milling of high mechanical energy.

Keywords

References

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