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J. Korean Ceram. Soc. > Volume 32(9); 1995 > Article
Journal of the Korean Ceramic Society 1995;32(9): 1056.
CuO의 첨가가 PMN-PT 세라믹스의 유전특성에 미치는 영향
김효태, 변재동, 김인태1, 김윤호1
고려대학교 공과대학 재료공학과
1한국과학기술연구원 세라믹스 연구부
Effects of CuO Addition on the Dielectric Properties of $Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3$ Ceramics
m have been investigated. From the microstructures, XRD analysis and dielectric measurements, the solubility limit of CuO in 95PMN-5PT was found to be around 3 mol%. Lattice parameter and Curie temperature were found to be decreased as the amount of CuO increased up to the solubility limit. This result confirmed that the Cu2+-ions substituted the Pb2+-ions. It was revealed that the addition of CuO on 95PMN-5PT promoted the sinterability and properties. The room temperature dielectric constant, the loss factor and the specific resistivity of the specimens processed with optimum conditions were 23000, 1%, and 8$times$1011Ω.cm, respectively.
Key words: $Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3$, Copper oxide, Dielectric properties
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