Journal of the Korean Vacuum Society (한국진공학회지)

The Korean Vacuum Society (한국진공학회)
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The study of ferroelectric properties for Pb(Mg1/3Ta2/3)O3-PbTiO3 solid solution modified with ZrO2

ZrO2 첨가에 따른 Pb(Mg1/3Ta2/3)O3-PbTiO3 고용체의 강유전 특성 연구

  • Kim, B.G. (Dept. of Information and Communication Engineering, Mokwon University)
  • 김강배 (목원대학교 정보통신학과)
  • Published : 2008.07.30
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Abstract

The $0.65Pb(Mg_{1/3}Ta_{2/3})O_3-0.35PbTiO_3$ (PMT-PT)ceramics were near morphotropic phase boundary. The dielectric constant, the loss, and pyroelectric coefficient of the ceramics were measured as a function of temperature ($25^{\circ}C\;{\sim}\;250^{\circ}C$). The dielectric constant, the loss, and the pyroelectric coefficient could be improved with the addition of small amounts of $ZrO_2$ up to 0.2 mol%. The dielectric and pyroelectric peak temperature are slightly shifted to lower temperatrues with the addition of amount of $ZrO_2$.

세라믹 강유전체 $0.65Pb(Mg_{1/3}Ta_{2/3})O_3-0.35PbTiO_3$ 고용체에 $ZrO_2$를 첨가하여 유전 및 초전 특성을 관찰하였다. 유전상수, 유전손실 및 초전계수의 측정온도는 상온에서 $250^{\circ}C$사이에서 측정되었다. 유전상수와 초전계수는 $0.2\;mol%ZrO_2$ 첨가에서 최대값을 얻었다. $ZrO_2$의 첨가량이 증가할수록 각 시료의 유전상수와 초전계수의 최대값은 낮은 온도로 이동하였고, 최대유전상수의 퍼짐현상은 증가하였다.

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References

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