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J. Korean Ceram. Soc. > Volume 29(7); 1992 > Article
Journal of the Korean Ceramic Society 1992;29(7): 572.
입방정과 사방정 PZT 요업체에서의 분극처리 후 유전율
정훈택, 김호기1
동신대학교 무기재료공학과
1한국과학기술원 무기재료공학과
Permittivity in Tetragonal and Rhombohedral Phase PZT Ceramics after Poling
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.
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