Abstract Lead-free relaxor ferroelectric, Ba0.85Ca0.15Zr0.05Ti0.95O3 have been fabricated by a hydrothermal method. Single-phase X-ray diffraction patterns conforms very closely to perovskites structure and the samples have a phase with a tetragonal structure at room temperature. The FESEM image of Ba0.85Ca0.15Zr0.05Ti0.95O3 powder shows cylindrical like crystals. Small grains with average grain sizes of ∼10 ± 5 nm uniformly distributed all over the powder. The most intense diffraction rings from TEM correspond to large crystallites. A broad dielectric anomaly coupled with the dielectric maxima with increasing frequency indicates the second order diffuse phase transition in the system.

中文翻译：

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弛豫Ba0.85Ca0.15Zr0.05Ti0.95O3无铅陶瓷相变行为及电学性能研究

摘要 采用水热法制备了无铅弛豫铁电体Ba0.85Ca0.15Zr0.05Ti0.95O3。单相 X 射线衍射图非常接近钙钛矿结构，样品在室温下具有四方结构的相。Ba0.85Ca0.15Zr0.05Ti0.95O3 粉末的 FESEM 图像显示圆柱形晶体。平均粒径约为 10 ± 5 nm 的小颗粒均匀分布在整个粉末中。来自 TEM 的最强衍射环对应于大晶粒。与频率增加的介电最大值耦合的宽介电异常表明系统中的二阶扩散相变。