Fabrication of PIMNT/Epoxy 1-3 composites and ultrasonic transducer for nondestructive evaluation

Zhang, Yaoyao; Zhao, Xiangyong; Wang, Wei; Ren, Bo; Liu, Da'an; Luo, Haosu

doi:10.1109/tuffc.2011.2014

Cited by 20 publications

(3 citation statements)

References 17 publications

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“…Additionally, Boundary Elements physics are applied to model the interaction between the sound waves and the fluid's boundaries, enabling the resolution of the wave equation within the aquatic domain. This comprehensive understanding is vital for the precise design and application of transducers, ensuring effective fluid sensing and communication [5] . By leveraging these physical concepts, transducers can accurately detect and respond to changes in their fluidic surroundings, making them indispensable tools in a variety of fields, from marine exploration to industrial process control [6] .…”

Section: Model Definitionmentioning

confidence: 99%

Simulation study on acoustic performance of Tonpilz piezoelectric transducers

Wang

2024

J. Phys.: Conf. Ser.

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The Tonpilz configuration of transducers is recognized for its capability to generate high-power acoustic emissions at relatively lower frequencies, which is a prevalent setup in sonar systems. Comprising a frontal radiating element, a rear casing, and a piezoelectric ceramic ring sandwiched between them and affixed by a central bolt, this study delineates the inclusion of bolt pretension impact. The investigation assesses the structural and acoustic ramifications of the transducer’s frequency response. These findings indicate the commendable acoustic performance of the transducer.

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Section: Model Definitionmentioning

confidence: 99%

Simulation study on acoustic performance of Tonpilz piezoelectric transducers

Wang

2024

J. Phys.: Conf. Ser.

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“…1-3 piezoelectric composite can be widely used in underwater transducers [10][11][12][13], medical imaging applications [14,15], and nondestructive testing (NDT) or nondestructive evaluation (NDE) [16][17][18], mainly because it has the following characteristics [19]: (1) 1-3 piezoelectric composite has a relatively low acoustic impedance, which means it is easy to find sound absorbing material as a backing. (2) The mechanical quality factor Q of 1-3 piezoelectric composite is relatively low, which is suitable for making a broadband narrow pulse transducer.…”

Section: Introductionmentioning

confidence: 99%

Characterization of 1-3 Piezoelectric Composite with a 3-Tier Polymer Structure

et al. 2020

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In order to boost the electromechanical coupling factor and decrease the characteristic impedance, a 1-3 piezoelectric composite with a 3-tier polymer structure was designed and fabricated, in which epoxy resin constitutes the middle layer and silicone rubber is used to clamp the epoxy. The effective parameters of the composite, such as resonant frequency, electromechanical coupling factor, and characteristic impedance, were studied by the finite element method and experiment. The experimental results indicate that the electromechanical coupling factor of the composite is enhanced by 8.4% and the characteristic impedance is decreased by 52.8%, compared with the traditional 1-3 ceramic/epoxy composite.

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“…PMNT single crystals and their composites have been applied in the field of NDT over the past several years, such as dual element transducer and angle beam transducer [8,9,10,11,12], while they were limited to some low-frequency range of NDT applications. In this work, 5–6 MHz PMNT/epoxy 1–3 composites were prepared by a modified dice-and-fill technology.…”

Section: Introductionmentioning

confidence: 99%

Broadband and High Sensitive Time-of-Flight Diffraction Ultrasonic Transducers Based on PMNT/Epoxy 1–3 Piezoelectric Composite

Wang

Deng

et al. 2015

Sensors

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5–6 MHz PMNT/epoxy 1–3 composites were prepared by a modified dice-and-fill method. They exhibit excellent properties for ultrasonic transducer applications, such as ultrahigh thickness electromechanical coupling coefficient kt (85.7%), large piezoelectric coefficient d33 (1209 pC/N), and relatively low acoustic impedance Z (1.82 × 107 kg/(m2·s)). Besides, two types of Time-of-Flight Diffraction (TOFD) ultrasonic transducers have been designed, fabricated, and characterized, which have different matching layer schemes with the acoustic impedance of 4.8 and 5.7 × 106 kg/(m2·s), respectively. In the detection on a backwall of 12.7 mm polystyrene, the former exhibits higher detectivity, the relative pulse-echo sensitivity and −6 dB relative bandwidth are −21.93 dB and 102.7%, respectively, while the later exhibits broader bandwidth, the relative pulse-echo sensitivity and −6 dB relative bandwidth are −24.08 dB and 117.3%, respectively. These TOFD ultrasonic transducers based on PMNT/epoxy 1–3 composite exhibit considerably improved performance over the commercial PZT/epoxy 1–3 composite TOFD ultrasonic transducer.

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Fabrication of PIMNT/Epoxy 1-3 composites and ultrasonic transducer for nondestructive evaluation

Cited by 20 publications

References 17 publications

Simulation study on acoustic performance of Tonpilz piezoelectric transducers

Simulation study on acoustic performance of Tonpilz piezoelectric transducers

Characterization of 1-3 Piezoelectric Composite with a 3-Tier Polymer Structure

Broadband and High Sensitive Time-of-Flight Diffraction Ultrasonic Transducers Based on PMNT/Epoxy 1–3 Piezoelectric Composite

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