Relationships between structure and properties in commercial lead zirconate titanate (PZT) piezoceramics

IF 8.4 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Journal of Materiomics Pub Date : 2025-03-12 DOI:10.1016/j.jmat.2025.101052
Xuyao Tang, Zimeng Hu, Vladimir Koval, Harry Baxter, Mirva Eriksson, Richard Whiteley, Krishnarjun Banerjee, Giuseppe Viola, Bin Yang, Haixue Yan
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引用次数: 0

Abstract

Lead zirconate titanate (PZT) ceramics are the most widely used commercial piezoelectric ceramics. However, the relationships between structure and properties are still not completely clarified. In this work, a broad investigation is carried out on commercial PZT 5A, 5H and 4D ceramics. X-ray diffraction revealed that these compounds mainly contain a mixture of P4mm and C1m1 phases at room temperature, and poling induced an increased unit cell distortion in both phases and a higher content of the monoclinic phase. In the poled samples, the Curie point shifts towards lower temperatures, contradicting the Abrahams-Kurtz-Jamieson (AKJ) relation for distorted displacive ferroelectrics. The discordance in the phase transition behavior can be attributed to the decreased domain wall density in the PZT systems. Furthermore, the observed increase of the dielectric permittivity from radiofrequency to the THz range is explained by the increase of the ferroelectric distortion associated with the field-induced transitions and decreased domain wall density. A parameter ψ was introduced to characterize the asymmetry of ferroelectric hysteresis loops. The higher ψ value of the hard PZT 4D ceramic compared to that of soft PZT 5A and 5H is attributed to the pinning effect of oxygen vacancies on domain walls.

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来源期刊
Journal of Materiomics
Journal of Materiomics Materials Science-Metals and Alloys
CiteScore
14.30
自引率
6.40%
发文量
331
审稿时长
37 days
期刊介绍: The Journal of Materiomics is a peer-reviewed open-access journal that aims to serve as a forum for the continuous dissemination of research within the field of materials science. It particularly emphasizes systematic studies on the relationships between composition, processing, structure, property, and performance of advanced materials. The journal is supported by the Chinese Ceramic Society and is indexed in SCIE and Scopus. It is commonly referred to as J Materiomics.
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