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J. Korean Ceram. Soc. > Volume 29(9); 1992 > Article
Journal of the Korean Ceramic Society 1992;29(9): 675.
Pb($Zn_{1/3}Nb_{2/3}O_3-PbTiO_3-BaTiO_3$) System의 미세구조와 전기적 물성에 관한 연구
이응상, 이정우
한양대학교 무기재료공학과
A Study on Microstructure and Electrical Properties in Pb($Zn_{1/3}Nb_{2/3}O_3-PbTiO_3-BaTiO_3$ System
The purpose of this investigation was to study the stability of perovskite structure, the variation of electrical properties and a microstructure with varing amount of PbTiO3 additive in PZN-PT-BT system. The results are as follows: 1. The pyrochlore phase was reduced as the amount of PbTiO3 additive was increased and completely eliminated at 0.15PT in PZN-PT-BT system. 2. The aging rate was increased in proportion to tetragonality because the internal stress was increased in proportion to tetragonality. 3. On increasing the amount of PbTiO3 additive, the Curie temperature was increased in proportion to tetragonality. 4. As the amount of PT in the composition increase, the variation of dielectric constant was sharpened and the diffuseness of the transition decreased.
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