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通过热压方法烧结的酸化PBZT铁电陶的特性

Dagmara Brzezińska¹, Dariusz Bochenek¹, Maciej Zubko¹

¹Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1 A, 41-500 Chorzów, Poland.

Materials (Basel, Switzerland)

|October 26, 2024

概括

本研究探讨了添加酸酸酸 (PBZT_xSn) 陶,发现含量增加增强介电性质和相位过渡行为,可用于脉冲电容器和执行器.

科学领域:

材料科学材料科学材料科学
固态物理固态物理
陶工程陶工程陶工程

背景情况:

铁电材料对于电子应用至关重要,需要量身定制的介电和结构性质.
酸酸酸 (PBZT) 是一个有前途的矿系统,但它的特性可以通过染来调整.
在PBZT中 (Sn) 兴奋剂的目的是为了特定应用而修改其铁电和介电特性.

研究的目的:

研究添加PBZT固体溶液 (PBZT_xSn) 的结构,微结构,铁电和介电性质.
为了确定不同含量 (x = 0.000.08) 对相位过渡和介电行为的影响.
评估这些材料适用于微机电应用的适用性.

主要方法:

通过粉末化合成 (Pb0.97Ba0.03) ((Zr0.98Ti0.02) 1-xSnxO3 (PBZT_xSn) 陶.
使用热压方法烧结,以获得密集的微观结构.
使用X射线衍光度 (XRD) 进行表征,包括在各种温度下进行瑞特维尔德分析,以及介电/铁电测量.

主要成果:

所有PBZT_xSn样本在室温下都表现出一个正方体晶体结构 (Pnnm) 与密集的微观结构 (1.361.73μm颗粒).
室温的导电率在265到275之间,在铁电-电过渡 (892312,141) 时显著增加.
增加锡含量降低了电容性和介电损失,改变了相位过渡温度 (温度增加后的正方体 → 圆柱体 → 立方体),降低了低频介电分散.

结论:

兴奋剂有效调整PBZT陶的介电性质和相位过渡行为.
观察到的相变 (OR-RE-C) 与温度变化被XRD瑞特维尔德分析证实.
由于其有利的性能,PBZT_xSn材料显示出微机电应用的潜力,例如脉冲电容器和执行元件.

关键词:

在PBZT陶中.介电性质介电性质铁电器铁电器铁电器阶段过渡阶段过渡放松器是一种放松器.

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