Dielectric characteristics of Pb(Zn1/3Ta2/3)O3-BaTiO3 ceramics with/without PbTiO3 modification

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• 作者：Kyung-Han Seo ; Bong-Ho Lee ; Nam-Kyoung Kim and Jaejung Ko
• 刊名：Journal of Materials Science
• 出版年：2005
• 出版时间：December 2005
• 年：2005
• 卷：40
• 期：23
• 页码：6151-6156
• 全文大小：1,895 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Characterization and Evaluation Materials
  Polymer Sciences
  Continuum Mechanics and Mechanics of Materials
  Crystallography
  Mechanics
  
• 出版者：Springer Netherlands
• ISSN：1573-4803

文摘

Stabilization tendencies of the perovskite structure in a Pb(Zn_1/3Ta_2/3)O₃-BaTiO₃ pseudobinary system with/without compositional modification by 20 mol% PbTiO₃ introduction were compared. In order to promote perovskite phase formation, the B-site precursor method (which is conceptually similar to the columbite process) was employed in this study. Dielectric properties of sintered samples were investigated as functions of composition and measurement frequency. Dielectric constant spectra, in the paraelectric temperature region, were further analyzed in terms of diffuseness. Microstructures of sintered specimens were also investigated and correlated with perovskite stabilization.