Electrophoretic Deposition of Lead Zirconate Titanate Ceramics
Electrophoretic Deposition of Lead Zirconate Titanate Ceramics
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DOI：
10.1111/j.1151-2916.2002.tb00344.x
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发表时间：
2004-12
影响因子：
3.9
通讯作者：
Jan Ma;W. Cheng
中科院分区：
文献类型：
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作者：
Jan Ma;W. Cheng
将亚微米锆钛酸铅（PZT）粉末在乙醇中电泳沉积（EPD），形成厚达160 μm的绿色PZT薄膜。采用ζ电位法研究了PZT胶体稳定性随pH值的变化规律。在不同的pH值下，通过电导率测量来量化悬浮液的电性能。研究了不同外加电流密度对沉积质量的影响。在实验结果的基础上，建立了考虑颗粒浓度变化的恒流密度EPD过程动力学模型。提出了动力常数与外加电流密度之间的经验关系。
Electrophoretic deposition (EPD) of submicrometer lead zirconate titanate (PZT) powders in ethanol was conducted to form thick green PZT films up to 160 μm thick. The PZT colloid stability, as a function of pH, was studied by zeta-potential measurement. The electrical condition of the suspension was quantified by conductivity measurement at various pH values. The effect of different applied current densities on the deposition mass was investigated. A kinetic model for the constant-current-density EPD process, taking into account the particle concentration variation, was also examined, based on the experimental results obtained in the present work. An empirical relationship between the kinetic constant and the applied current density has been proposed.