Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1987.11a
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- Pages.213-215
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- 1987
Influences of Grain Size on some Properties of the Penferroelectric PLZT Ceramics
준강유전 PLZT 세라믹의 그레인 크기 변화에 따른 특성연구
- Park, Chang-Yub (Dept. or Electrical Engineering, Yonsei Univ.) ;
- Yoo, Jo-Hyn (Dept. or Electrical Engineering, Yonsei Univ.) ;
- Park, Sung-Il (Dept. or Electrical Engineering, Yonsei Univ.)
- Published : 1987.11.20
Abstract
In this paper, influences or grain size on the electro-optic properties were studied on the penferroelectric PLZT ceramics. The specimens were fabricated by the two stage sintering method. Relative permittivity was a little increased with the increment or grain size in 9,9.5/65/35 (La/Zr/Ti) PLZT specimens, and Curie temperature was decreased in the 9.5/65/35 specimens but constant in the 9.5/65/35 specimens. As the grain size was increased, field induced polarization and dP/dE were increased. Because domain walls can be easily moved by electric field. Light transmittance was increased in the 9/65/35 PLZT specimens but there was little effect on the grain size in the 9.5/65/35 PLZT specimens.
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