Characterization of an Improved 1-3 Piezoelectric Composite by Simulation and Experiment

Zhong, Chao; Wang, Likun; Qin, Lei; Zhang, Yanjun

doi:10.5301/jabfm.5000365

Cited by 13 publications

(7 citation statements)

References 4 publications

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“…However, when the composite material is used for extremely long periods, the silicone rubber exhibits aging and deformation. Therefore, excessive silicone rubber causes the electrode on the material surface to fall off, resulting in the deformation of the whole material [49]. Given these factors, the modified 1-3 piezoelectric composite is designed to avoid the potential negative effects of the two types of polymers.…”

Section: Design Of Modified 1-3 Piezoelectric Composite Structurementioning

confidence: 99%

Design and Properties Analysis of Novel Modified 1-3 Piezoelectric Composite

et al. 2021

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With the increasing demand for energy exchangers in underwater acoustic equipment, a modified 1-3 piezoelectric composite material is fabricated based on three-component phases. The new material outperforms the traditional two-phase 1-3 structure. Flexible silicone rubber polymer strengthened the piezoelectric composite and the properties of modified 1-3 piezoelectric composite have been tested by method of finite element simulation and experiment, respectively. This modified material has a high electromechanical coupling coefficient; the maximum can reach 0.684 and −3 dB bandwidth is superior to the two-phase 1-3 type. At the same time, the modified phase 1-3 type structure has an excellent decoupling effect. Silicone rubber can reduce the negative coupling vibration of epoxy resin, the vibration model simplification of piezoelectric composite, and the result of the experiment and simulation has good consistency.

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Section: Design Of Modified 1-3 Piezoelectric Composite Structurementioning

confidence: 99%

Design and Properties Analysis of Novel Modified 1-3 Piezoelectric Composite

et al. 2021

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“…The larger the effective electromechanical coupling coefficient, the stronger the material's electromechanical conversion capability. Generally, it can be obtained from the resonant frequency and anti-resonant frequency of the transducer using Equation ( 5) [31]:…”

Section: Effective Electromechanical Coupling Coefficient Test For the 1-3 Composite Arraymentioning

confidence: 99%

“…Silicone rubber is a kind of flexible polymer with a low Young's modulus, that plays a great part in the structure of three-phase 1-3 piezoelectric composites. However, silicone rubber is prone to aging and deformation when under strong voltages for a long time [26,31], and the electrode will also be damaged, which will also lead to physical differences.…”

Section: Experimental Error Analysismentioning

confidence: 99%

Design of Planar Array Transducers Based on Connected 1–3 Piezoelectric Composites

et al. 2021

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To improve the transmission performance and preparation of a transducer array, two planar array transducers based on connected 1–3 piezoelectric composites as a matrix were designed. Each transducer contained 25 array elements with a gap of 1 mm between them. The length, width and height of each array element were 1 mm, 26 mm and 5 mm, respectively. Two kinds of array transducers were tested through finite element simulation and experiments. The array transducer prototype was fabricated based on two kinds of composite materials, and the fabrication cycle was short. Our results show that the maximum transmission voltage response of the two-phase 1–3 full array driver is up to 179 dB at 200–400 kHz and the acoustic radiation intensity can be increased by up to 22% compared with the traditional splicing transducer array. It is suitable for short-range target positioning and measurement. Moreover, in the single element mode, the beam of the three-phase 1–3 transducer has no sidelobe and a single element −3 dB beam width of up to 91°. Furthermore, the beam width of the two-phase 1–3 type is 54°, and the acoustic radiation breadth is improved by 40.6%. The three-phase 1–3 type array transducer has the characteristics of concentrated acoustic transmission energy of the whole array, and its −3 dB beam width is 3.5°. The beam width decreased by 12.5%, indicating that the three-phase 1–3 type transducer is suitable for short-range target detection and perception. The two array transducers have their own advantages in transmitting the voltage response and beam width, which must be selected on the basis of the requirements of practical applications.

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“…Due to the limitation of Young's modulus of epoxy resin, the electromechanical coupling factor of conventional 1-3 ceramic/epoxy composite can only reach 0.6 approximately [20]. Many experts are working to improve the electromechanical coupling factor of piezoelectric composite.…”

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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Characterization of an Improved 1-3 Piezoelectric Composite by Simulation and Experiment

Cited by 13 publications

References 4 publications

Design and Properties Analysis of Novel Modified 1-3 Piezoelectric Composite

Design and Properties Analysis of Novel Modified 1-3 Piezoelectric Composite

Design of Planar Array Transducers Based on Connected 1–3 Piezoelectric Composites

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

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