A. Zarycka, R. Zachariasz, M. Czerwiec, J. Ilczuk, J. Rymarczyk
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引用次数: 0
摘要
本文介绍了基于双组分固溶体Pb(Zr x Ti 1-x) o3制备PZT陶瓷的研究结果。采用溶胶-凝胶法制备纳米粉体，采用传统陶瓷烧结法制备样品。测定了不同Zr/Ti含量(0.35≤x≤0.65)样品在300 ~ 750K范围内的电导率σg与温度的关系。根据InaT = f(1/T)的依赖关系，计算活化能ea。铁电相的ea测定值在0.53 ~ 0.71 eV，准电相的ea测定值在0.75 ~ 0.80 eV。
The influence of the Zr/Ti content of the PZT ceramics obtained by sol-gel method on the electric conductivity
In this work, the results of investigations of the PZT ceramics, received on the base of two - component solid solutions Pb(Zr x Ti 1-x )O 3 are presented. The samples were obtained by conventional ceramic sintering method with nanopowders received in the sol-gel method. The temperature dependencies of the electric conductivity σg or all samples, with different content Zr/Ti (0.35 ≤ x ≤ 0.65), in the range temperatures of 300 ÷ 750K, were performed. On the base of the InaT = f(1/T) dependencies, the activation energy E a was calculated. The determined values of the E a were limited in the range 0.53 ÷ 0.71 eV for ferroelectric phase as well as 0.75 ÷ 0.80 eV for paraelectric phase.
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