Ferroelectric Domain Structure and Array of Tetragonal and Rhombohedral Phase in PZT Ceramics at MPB Composition

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J. Korean Ceram. Soc. > Volume 30(11); 1993 > Article

Journal of the Korean Ceramic Society 1993;30(11): 919.

상경계 PZT 세라믹스의 강유전 분역구조 및 정방정상과 능면체정상의 공간적 배열

천채일, 김호기¹

호서대학교 재료공학과
¹한국과학기술원 무기재료공학과

Ferroelectric Domain Structure and Array of Tetragonal and Rhombohedral Phase in PZT Ceramics at MPB Composition

ABSTRACT

Domain structure and the spatial arrangement of tetragonal and rhombohedral phases in PZT ceramics at MPB composition were investigated with a transmission electron microscope. Fringe Contrast and doublet spot splitting were observed in the image mode and the selected area diffraction pattern, respectively. Besides, triplet spot splitting was also observed in the other part of the specimen. These observations indicate that both the single phase regions and the regions which are comosed of alternatively arranged tetragonal and rhombohedral domains coexist in a PZT ceramics at the MPB composition.