Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Influence of CuO Dopants on the Sintering Ability and Phase Stability of Yttria-Stabilized Tetragonal Zirconia Polycrystals

Y-TZP의 燒結性 및 相 安定性에 대한 CuO添加의 影響

  • 피재환 (한국해양대학교 기계소재공학과) ;
  • 김윤해 (한국해양대학교 기계소재공학과) ;
  • Published : 1999.05.01
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Abstract

Effects of CuO addition on the sintering ability and the phase stability of Y-TZP. (Yttria doped Tetragonal Zirconia Polycrystals) were studied. The CuO dopants were found to be quite effective in reducing the sintering temperature to obtain full density and refining the grain size. The maximum allowable concentration of the dopants was limited to 0.3%mol% for CuO to maintain fully tetragonal phase. With the addition of these dopants, the flexual strength decreased by 20% in comparison with the undoped specimen but the fracture toughness increased by 15%.

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