Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Permittivity in Tetragonal and Rhombohedral Phase PZT Ceramics after Poling

입방정과 사방정 PZT 요업체에서의 분극처리 후 유전율

  • 정훈택 (동신대학교 무기재료공학과) ;
  • 김호기 (한국과학기술원 무기재료공학과)
  • Published : 1992.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

Dielectric constant of ferroelectric ceramics with poling is important in relation to the mechanism of dielectric breakdown. From the research about the dielectric constant variation with poling in tetragonal and rhombohedral phase PZT ceramics, it is known that the dielectric constant after poling is determined by competing effects between increasing effects (compressive stress induced by electrostriction of piezoelectric effects) and decreasing increase in large grain size with poling is smaller than in small grain size.

Keywords

References

  1. Piezoelectric Ceramics B. Jaffe;W.R. Cook,Jr;H. Jaffe
  2. J. Appl. Phys. v.28 Domain Effects in Polycrystalline Barium Titanate E.C. Subbarao;M.C. McQuarrie;W.R. Buessem
  3. J. Am. Ceram. Soc. v.72 no.C327 Grain-size Dependence of Electrically Induced Microcracking in Ferroelectric Ceramics H.T. Chung;B.C. Shin;H.G. Kim
  4. Ferrelectrics v.50 no.273 Internal Stress Anisotropies Induced by Electric Field in Lanthanum modified PbTiO₃ Ceramics T. Yamamoto;H. Igarashi;K. Okazaki
  5. Yoggyo-Kyokaishi v.90 no.339 Effects of Grain Size on Dielectric Constant of BaTiO₃ K. Yamashita;S. Yamazaki;K. Koumoto;H. Yanagida
  6. Ferroelectrics v.62 no.167 X-ray Difraction Studies of Domain Alignments in Modified PZT Y.S. NG;A.D. McDonald
  7. Ferroelectrics Letters v.44 no.227 Low Fiels Poling of Soft PZTs T.L. Shrout;A. Safari;W.A. Schulze
  8. J. Am. Ceram. Soc. v.49 no.36 Effect of Two-dimensional Pressure on the Permittivity of Fine-and Coarse-grained Barium Titanate W.R. Buessem;L.E. Cross;A.K. Goswami
  9. ibid. v.49 no.33 Phenomenological Theory of High Permittivity in Fine-grai-ned Barium Titanate W.R. Buessem;L.E. Cross;A.K. Goswami