Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Studies on Fabrication of Translucent Eletrooptic Ceramics

투광성 전기 광학용 소자의 제조에 관한 연구

  • 김재육 (서울대학교 공과대학 무기재료공학과) ;
  • 이태근 (서울대학교 공과대학 무기재료공학과) ;
  • 임응극 (서울대학교 공과대학 무기재료공학과)
  • Published : 1985.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to fabricate the translucent electrooptic ceramics which are comparable to PLZT, $PNZT^*$ has been prepared from aqueous solutions of their itrate and chlorides. In the quarternary $Pb^{1-x} Nd_x(Zr_{0.63} Ti_{0.37})^{1-\frac{x}{4}O_3$, (PNZT) $(0.02\le x\ge 0.12)$ system cold-pressed PNZT slugs were sintered in $O_2$ in pt-crucible for 45 min. at 118$0^{\circ}C$ and were then heat-treated in air for 60 hrs. at 120$0^{\circ}C$ in Al2O3 crucibles containing $PbZrO_3$ powder to control the atmosphere. Mean particle size of calcined PNZT powders was 0.1~0.15${\mu}{\textrm}{m}$. It was found that the maximum value of optical transmission has been revealed at 6~8 at. % $Nd_2O_3$ added body and that their dielectric constant has been decreased as the frequency increased. Curic temperature has been varied inversely with $Nd^{3+}$ ion content up to 8 at. % and become constant above this value. $^*Pb_{1-x}Nd_x(Zr_{0.63} Ti_{0.37})_{1-2/4}O_3$

Keywords

References

  1. J. Am. Ceram. Soc. v.54 no.1 Hot-Pressed (Pb,La)(Zr,Ti)O₃ Ferroelectric Ceramics for Electrooptic Applications G.H. Hacrtling;C.E. Land
  2. エレクトロクス用 セシツクス 電氣光學用 セシツクスの 製作とその應用 Kunigiro Nagata
  3. Ferroelectrics v.10 An Improved Technique for Ferroelectric Ceramics J. Pottharst;H. Schichl
  4. J. Am. Ceram. Soc. v.56 no.2 Fabrication of Transparent Electrooptic PLZT Ceramics by Atmosphere Sintering G.S. Snow
  5. J. Am. Ceram. Soc. v.55 no.11 Cold Pressing and Low-Temperature Sintering of Alkoxy-Derived PLZT L.M. Brown;K.S. Mazdinyasni
  6. Am. Ceram. Soc Bull. v.53 no.5 Chemical Preparation of PLZT Powders from Aqueous Nitrate Solutions J. Thomson, Jr.
  7. Ceramic Powder Preparation of Active Powder for Electronic Ceramics by Alcohol Dehydration of Citrate Solutions C.E.Li(et al.);P. Vincenzini(ed.)
  8. J. Am. Ceram. Soc. v.59 no.9 Improvements in Atmosphere Sintering of Transparent PLZT Ceramics G.S. Snow
  9. Ferroelectrics v.10 Electrical, Optical and Acoustic Properties of PLZT Ceramics by Two-Stage Processing K. Okazaki(et al.)
  10. 무기 정량 분석 화학의 이론과 응용 이길상
  11. Ferroelectrics v.23 Dielectric Behaviour of PLZT Ceramics Modified by $Ca^2+$, $Sr^2+$, $Nd^3+$, $Y^3+$Ions T.R. Gururaja;E.C. Subbarao
  12. Ferroelectrics v.10 Hot Pressed (Pb,$R_A$)(Zr,Ti,$R_B$)O₃Ferroelectric Ceramics for Electro-Optic Applications S. Hayashi(et al.)
  13. An Introduction to Error Analysis J.R. Taylor