Piezoelectric and electromechanical synergic optimization in MnCO3-modified lead magnesium niobate-lead zirconate titanate ceramics for high-power antenna

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of the American Ceramic Society Pub Date : 2025-01-23 DOI:10.1111/jace.20388

Ling Li, Xiangjie Chen, Tianfu Lei, Xiang Li, Jinglei Li, Fei Li, Yaojin Wang

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Abstract

Lead zirconate titanate (PZT)-based piezoelectric ceramics are crucial components in high-power magnetoelectric (ME) antenna devices, contributing to the miniaturization of very low frequency (VLF) communication systems. The piezoelectric coefficient (d₃₃) and mechanical quality factor (Q_m) determine the quality of the radiation performance of the antenna device and, therefore, play a pivotal role in antenna preparation and selection. However, achieving high values for both d₃₃ and Q_m simultaneously proves challenging, as these properties often tend to compete with each other. Herein, we address this challenge by introducing MnCO₃-modified lead magnesium niobate (PMN)-PZT piezoelectric ceramics, leveraging elements doping to achieve a well-balanced performance, where the d₃₃ was optimized to 530 pC/N, while concurrently attaining a Q_m of 624, being attributed to the synergistic contributions from the defect dipole and lead vacancies. Notably, the PMN-PZT-based antenna device exhibits a significantly enhanced converse ME coefficient α_CME = 0.138 Oe·cm/V, which improves the antenna emission performance by about 25% compared to commercial PZT-4 samples. These findings offer a promising theoretical foundation and a feasible technical pathway for the development and design of ME antennas in the future.

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基于锆钛酸铅（PZT）的压电陶瓷是大功率磁电（ME）天线设备的关键元件，有助于实现甚低频（VLF）通信系统的微型化。压电系数（d33）和机械品质因数（Qm）决定了天线装置的辐射性能质量，因此在天线的制备和选择中起着至关重要的作用。然而，要同时获得较高的 d33 和 Qm 值具有挑战性，因为这些特性往往会相互竞争。在本文中，我们通过引入 MnCO3 改性的铌酸镁铅 (PMN)-PZT 压电陶瓷来应对这一挑战，利用元素掺杂实现了均衡的性能，其中 d33 优化为 530 pC/N，同时 Qm 达到 624，这归功于缺陷偶极子和铅空位的协同贡献。值得注意的是，基于 PMN-PZT 的天线器件显示出显著增强的反向 ME 系数 αCME = 0.138 Oe-cm/V，与商用 PZT-4 样品相比，天线发射性能提高了约 25%。这些发现为未来 ME 天线的开发和设计提供了良好的理论基础和可行的技术途径。

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.