基于 1-3 种压电复合材料的纹理铁电陶瓷，用于光声成像

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2024-11-13 DOI:10.1016/j.sna.2024.116030

Zhiqing Zhang , Zhiguo Wang , Shuai Yang , Fei Li , Qingqing Ke

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引用次数: 0

摘要

超声波和光声成像的质量主要取决于压电换能器元件的性能，而压电换能器元件的性能与压电材料的声学和电学特性密切相关。随着对高性能、低成本压电材料的需求不断增加，一种耐高温 <001>纹理铁电陶瓷 Pb(In1/2Nb1/2)O3-Pb(Sc1/2Nb1/2)O3-PbTiO3 (PIN-PSN-PT) 已被开发出来。近年来，低成本的纹理陶瓷材料表现出较高的压电常数（d33）和较大的机电耦合系数（kt）。本研究首次成功制造了基于 PIN-PSN-PT 纹理陶瓷的超声波换能器。该换能器的中心频率为 4.7 MHz，-6 dB 带宽为 60%，有效 kt 为 0.76，双向插入损耗 (IL) 为 -34 dB。对碳纤维增强聚合物（CFRP）进行了光声成像实验，以评估传感器的灵敏度和成像质量。结果表明，使用 PIN-PSN-PT 纹理陶瓷在开发光声无损检测应用的声传感器方面具有巨大潜力。

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Textured ferroelectric ceramics based 1–3 piezoelectric composite for photoacoustic imaging

The quality of ultrasound and photoacoustic imaging primarily depends on the performance of piezoelectric transducer elements, which is closely related to the acoustic and electrical properties of piezoelectric materials. With the increasing demand for high-performance, low-cost piezoelectric materials, a high-temperature-resistant <001>-textured ferroelectric ceramic Pb(In_1/2Nb_1/2)O₃-Pb(Sc_1/2Nb_1/2)O₃-PbTiO₃ (PIN-PSN-PT) has been developed. In recent years, low-cost textured ceramic materials have exhibited high piezoelectric constants (d₃₃) and large electromechanical coupling coefficients (k_t). In this study, an ultrasonic transducer based on PIN-PSN-PT textured ceramic was successfully manufactured for the first time. The transducer has a center frequency of 4.7 MHz, −6 dB bandwidth of 60 %, effective k_t of 0.76, and two-way insertion loss (IL) of −34 dB. Photoacoustic imaging experiments on carbon fiber-reinforced polymer (CFRP) were conducted to evaluate the sensitivity and imaging quality of the transducer. The results indicate that the use of PIN-PSN-PT textured ceramics holds great potential in developing acoustic sensors for photoacoustic non-destructive testing applications.

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...