The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Effects of $Ba(La_{1/2}Nb_{1/2})O_3$ content and Zr/Ti composition ratio on electrooptic properties of the $Ba(La_{1/2}Nb_{1/2})O_3-Pb(Zr, Ti)O_3$ ceramics

$Ba(La_{1/2}Nb_{1/2})O_3$의 고용량과 Zr/Ti 조성비가 $Ba(La_{1/2}Nb_{1/2})O_3-Pb(Zr, Ti)O_3$ 세라믹의 전기광학 특성에 미치는 영향

  • 류기원 (여주전문대 전자과) ;
  • 이성갑 (서남대 공대 전자공학과) ;
  • 배선기 (시립인천대 공대 전기공학과) ;
  • 이영희 (광운대 공대 전자재료공학과)
  • Published : 1995.05.01
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Abstract

Transparent xBa(La$_{1}$2/Nb$_{1}$2/)O$_{3}$-(1-x)Pb(Zr, Ti)O$_{3}$ (x=8.5, 9.0[mol.%], Zr/Ti=70/30~40/60) ceramics were fabricated by the two-stage sintering method, the electrooptic properties were investigated with Ba(La$_{1}$2/Nb$_{1}$2/)O$_{3}$ content and Zr/Ti composition ratio. Decreasing the Zr/Ti ratio, the electrooptic property was changed from a quadratic electrooptic effect to a linear electrooptic effcet. In the BLN-PZT 9.0/50/50 specimen having the tetragonal structure, the linear electrooptic coefficient had the highest value of 6.01*10$^{-10}$ [m/V] and in the BLN-PZT 9.0/55/45 specimen which located near the MPB region, the quadratic electrooptic coefficient had the highest value of 10.53*10$^{-16}$ [m$^{2}$/V$^{2}$].

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