Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1987.11a
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- Pages.220-223
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- 1987
Electro-optic Characteristics of 7.5/70/30 PLZT Ceramics According to the Second Stage Sintering Time
2단 소성시간이 7.6/70/30 PLZT 세라믹의 전기적 특성에 미치는 영향
- Park, Chang-Yub (Dept. of Electrical Engineering, Yonsei Univ.) ;
- Chong, Ik-Chae (Dept. of Electrical Engineering, Yonsei Univ.) ;
- Jeong, Hoy-Seung (Dept. of Electrical Engineering, Yonsei Univ.)
- Published : 1987.11.20
Abstract
In this paper, electro-optic characteristics of PLZT 7.6/70/30 composition in MPB regions, which antiferroelectric and ferroelectric phases coexist together, were studied. As sintering times are increased, Curie temperatures ore linearly decreased. And the antiferroelectric phase becomes more stronger when Curie temperatures are decreased. The crystal structure investigated by lie of X-ray analysis is proved to cubic in the thermally depoled specimen and rhombohedral in the poled specimen. Accordingly, the applicability of 7.6/70/30 specimen as image storage and display device is expected by the method for applying field induced reversible transitions between antiferroelectric(AFE) and ferroelectric(FE) phase.
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