Abstract A comparative study on a set of electrophysical parameters of novel piezo-active composites is carried out. These composites are based on ferroelectric ZTS-36 ceramic of the PZT type. The second (piezo-passive) component is either clay or corundum ceramic, and its volume fraction mc is varied from 0.01 to 0.10 (clay) or from 0.01 to 0.12 (corundum). The studied composites are characterised by elements of 3–0 connectivity patterns that include not only the aforementioned components but also air pores. Experimental volume-fraction (mc) dependences of the piezoelectric coefficients and (j = 1 and 3), their anisotropy ζd* = / mechanical quality factor and planar electromechanical coupling factor are compared for the clay- and corundum-containing composites. The corundum-containing composite exhibits large values (up to 858) at |ζd*| < 3.2, and the clay-containing composite is characterised by relatively large values (about 50–60 mV m/N) at |ζd*| < 4.9. The experimental volume-fraction dependences of ζd*, and are interpreted within the framework of a model of a 3–0-type composite with spheroidal inclusions (piezo-passive component and pores). Agreement between our modelling results and experimental values of the electrophysical parameters is observed in the studied mc range.

中文翻译：

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基于铁电陶瓷的新型含粘土和刚玉复合材料的一些电物理参数

摘要 对新型压电活性复合材料的一组电物理参数进行了对比研究。这些复合材料基于 PZT 型铁电 ZTS-36 陶瓷。第二个（压电无源）成分是粘土或刚玉陶瓷，其体积分数 mc 从 0.01 到 0.10（粘土）或从 0.01 到 0.12（刚玉）变化。所研究的复合材料的特征在于具有 3-0 连接模式的元素，其中不仅包括上述成分，还包括气孔。比较了含粘土和刚玉复合材料的压电系数和 (j = 1 和 3) 的实验体积分数 (mc) 依赖性、它们的各向异性 ζd* = / 机械品质因数和平面机电耦合因数。含刚玉的复合材料在 |ζd*| 处表现出很大的值（高达 858）< 3.2, 含粘土复合材料的特征是在 |ζd*| 处具有相对较大的值（约 50-60 mV m/N）。< 4.9。ζd* 的实验体积分数依赖性，并在具有球状夹杂物（压电被动成分和孔隙）的 3-0 型复合材料模型的框架内进行解释。在研究的 mc 范围内观察到我们的建模结果与电物理参数的实验值之间的一致性。