Piezoelectric and dielectric properties of transparent Pb(Ni1/3Nb2/3)1−x−yZrxTiyO3 ceramics prepared by hot isostatic pressing

International Journal of Inorganic Materials Pub Date : 2001-11-01 DOI:10.1016/S1466-6049(01)00200-8

Edward F Alberta, Amar S Bhalla

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引用次数: 31

Abstract

The dielectric, pyroelectric, piezoelectric and optical properties of transparent Pb(Ni_1–3Nb_2/3)_1−x−yZr_xTi_yO₃ (PNNZT) ceramics have been investigated. Hot isostatic pressing was used to achieve uniformly transparent ceramics with optical transmittance of more than 5% at 633 nm. The room temperature dielectric constant of 4200 and a loss of ∼0.025 were measured on these samples. Large electromechanical coupling factors, k_p=69%, k₃₁=43%, k_t=56%, and k₃₃∼80%, and large pyroelectric coefficients, 0.2075 μC/cm² K at room temperature and 2.3819 μC/cm² K at 129°C, were observed for poled ceramics. Transparent PNNZT ceramics could be promising candidates for many applications such as electrooptics, pyrooptics, and electromechanical transducers/sensors.

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热等静压法制备Pb(Ni1/3Nb2/3)1−x−yZrxTiyO3透明陶瓷的压电和介电性能

研究了Pb(Ni1-3Nb2/3)1−x−yZrxTiyO3 (PNNZT)透明陶瓷的介电、热释电、压电和光学性能。采用热等静压法制备均匀透明陶瓷，在633 nm处透光率大于5%。在这些样品上测得室温介电常数为4200，损耗为~ 0.025。极化陶瓷的机电耦合系数较大，kp=69%， k31=43%， kt=56%， k33 ~ 80%;热释电系数较大，室温时为0.2075 μC/cm2 K, 129℃时为2.3819 μC/cm2 K。透明PNNZT陶瓷可能是许多应用的有前途的候选者，如电光学，热光学和机电传感器/传感器。

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International Journal of Inorganic Materials

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