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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Dielectric properties of PZT-PCN ceramics under compressive stress
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Dielectric properties of PZT-PCN ceramics under compressive stress

机译：PZT-PCN陶瓷在压应力下的介电性能

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摘要

In this study, ceramics in PZT-PCN systems with a formula (1-x) Pb(Zr1/2Ti1/2) O-3-(x) Pb(Co1/3Nb2/3) O-3 (x = 0.1 - 0.5) were prepared by a solid-state mixed-oxide technique. The phase formation and microstructure were studied using x-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Effects of compressive stress on the dielectric properties of PZT-PCN ceramics were investigated at stress up to 230MPa using a compressometer. The results clearly showed that the dielectric constant of the PZT-PCN ceramics increased significantly with increasing applied stress, while the dielectric loss tangent showed an opposing trend. The experimental observations have been attributed to a combination of the domain switching and the deaging mechanisms from the application of the compressive stress.
机译：在这项研究中，PZT-PCN系统中的陶瓷的分子式为（1-x）Pb（Zr1 / 2Ti1 / 2）O-3-（x）Pb（Co1 / 3Nb2 / 3）O-3（x = 0.1-0.5 ）通过固态混合氧化物技术制备。分别使用X射线衍射（XRD）和扫描电子显微镜（SEM）研究了相的形成和微观结构。使用压力计研究了在高达230MPa的压力下，压缩应力对PZT-PCN陶瓷介电性能的影响。结果清楚地表明，随着施加应力的增加，PZT-PCN陶瓷的介电常数显着增加，而介电损耗角正切则显示出相反的趋势。实验观察结果归因于域转换和压缩应力作用下的衰老机制的结合。

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