Performance enhancements of Pb(Mg1/3Nb2/3)O3-xPbTiO3 single crystal/epoxy 1–3 composite by alternating current polarization

Hang, Hai; Jiang, Xianyao; Lin, Di; Wang, Feifei; Wang, Xian; Luo, Haosu

doi:10.1016/j.cap.2022.12.009

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…Advanced composites based on ferroelectric domainengineered single crystals (SCs) with important physical properties are of significant interest not only in an academic sense but also in a variety of transducer applications. Numerous two-component piezo-active SC-based composites, which were manufactured and studied recently, are characterised by either 2-2 [1][2][3] or 1-3 [4][5][6][7][8][9][10][11] connectivity written in terms of [12]. The connectivity indices such as 2-2 or 1-3 indicate [12,13] the number of axes of a rectangular coordinate system along which the first and second components of the composite are continuously distributed, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…The presence of high-performance SC as the main piezoelectric component with high properties becomes a stimulus to study the 'composition-structure-property' relationships [13] that can facilitate specific piezotechnical applications of novel composites. As follows from recent papers on piezo-active composites, their main components are often chosen among perovskite-type solid-solution compositions, for instance, lead-containing (1−x)Pb(Mg 1/3 Nb 2/3 )O 3 −xPbTiO 3 (PMN-xPT) [5,6,9,10,14], Pb(In 1/2 Nb 1/2 )O 3 -Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 [1,7,11] or lead-free BaTiO 3 -CaTiO 3 -BaZrO 3 [8].…”

Section: Introductionmentioning

confidence: 99%

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Two orientation effects and large anisotropy of parameters in piezo-active 2–1–2 composites based on [0 1 1]-poled crystals

Topolov

2024

J. Phys. D: Appl. Phys.

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Results of a comparative study on piezo-active 2–1–2 composites with two ferroelectric components are discussed. The composite structure combines elements of the 2–2 (laminar) and 1–3 (fibrous) connectivity patterns. The first component in each composite is domain-engineered [0 1 1]-poled single crystal with the macroscopic mm2 symmetry and high piezoelectric activity. The second component is poled ferroelectric ceramic that is represented by parallel rods in the shape of an elliptic cylinder with a large ratio of semi-axes of its base. The first orientation effect is appreciable due to rotations of the main crystallographic axes X and Y around Z || OX3 by an angle α in each crystal layer. Rotations of the ceramic rod bases by an angle γ in a polymer medium lead to the second orientation effect in the 2–1–2 composite. The two orientation effects contribute to a large anisotropy of electromechanical coupling factors k3j*, energy-harvesting figures of merit (Q3j*)2 and modified figures of merit F 3j*σ for a stress-driven harvester. The large level of (Q32*)2, (Q33*)2, F32*σ, and F33*σ (the parameters of the order of 10-11 - 10-10 Pa-1) indicates that the studied composites are suitable for piezoelectric sensors, transducers and energy-harvesting systems. New m – α diagrams put forward in the present study show regions wherein the large anisotropy of effective parameters (| k33*/ k3f*| ≥ 5, (Q33* / Q3f*)2 ≥10 and F33*σ / F3f*σ ≥ 10, f = 1 and 2) is achieved when changing the volume fraction m of single crystal and the rotation angle α. As a result, the leading role of the first orientation effect is emphasised.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Two orientation effects and large anisotropy of parameters in piezo-active 2–1–2 composites based on [0 1 1]-poled crystals

Topolov

2024

J. Phys. D: Appl. Phys.

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An Emerging Era: Conformable Ultrasound Electronics

Zhang,

Du,

Kim

et al. 2023

Advanced Materials

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Conformable electronics are regarded as the next generation of personal healthcare monitoring and remote diagnosis devices. In recent years, piezoelectric based conformable ultrasound electronics (cUSE) have been intensively studied due to their unique capabilities, including no‐radiative monitoring, soft tissue imaging, deep signal decoding, wireless power transfer, portability, and compatibility. This review provides a comprehensive understanding of cUSE for use in biomedical and healthcare monitoring systems and a summary of their recent advancements. Following an introduction to the fundamentals of piezoelectrics and ultrasound transducers, the critical parameters for transducer design are discussed. Next, five types of cUSE with their advantages and limitations are highlighted, and the fabrication of cUSE using advanced technologies is discussed. In addition, the working function, acoustic performance, and accomplishments in various applications are thoroughly summarized. We note that application considerations must be given to the tradeoffs between material selection, manufacturing processes, acoustic performance, mechanical integrity, and the entire integrated system. Finally, we highlight current challenges and directions for the development of cUSE, and provide research flow as the roadmap for future research. In conclusion, these advances in the fields of piezoelectric materials, ultrasound transducers, and conformable electronics spark an emerging era of biomedicine and personal healthcare.This article is protected by copyright. All rights reserved

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Wide-bandwidth immersion ultrasound transducer made of Mn:PIMNT single crystal/epoxy 1–3 composite

Xu,

Zhu,

Sun

et al. 2024

Sensors and Actuators A: Physical

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Performance enhancements of Pb(Mg1/3Nb2/3)O3-xPbTiO3 single crystal/epoxy 1–3 composite by alternating current polarization

Cited by 5 publications

References 26 publications

Two orientation effects and large anisotropy of parameters in piezo-active 2–1–2 composites based on [0 1 1]-poled crystals

Two orientation effects and large anisotropy of parameters in piezo-active 2–1–2 composites based on [0 1 1]-poled crystals

An Emerging Era: Conformable Ultrasound Electronics

Wide-bandwidth immersion ultrasound transducer made of Mn:PIMNT single crystal/epoxy 1–3 composite

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