Tonpilz Underwater Acoustic Transducer Integrating Lead-free Piezoelectric Material

Rouffaud, Rémi; Granger, C.; Hladky‐Hennion, Anne‐Christine; Thi, Mai Pham; Levassort, Franck

doi:10.1016/j.phpro.2015.08.208

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…Consequently, lead zirconate titanate (PZT) is the main piezoceramic family used for Tonpilz transducers due to their higher electrical properties. In the recent studies, lead magnesium niobate-lead titanate (PMN-PT) single crystals [10][11][12], lead-free perovskite compositions based on barium titanate [11] were also used as candidates for enhancing of the electromechanical properties. It has been observed that PMN-PT single-crystals operate in a wider bandwidth than commercially used PZT ceramics due to their high piezoelectric coefficient and electromechanical coupling factor.…”

Section: Introductionmentioning

confidence: 99%

Design, development and characterization of a mid-frequency (35 khz) tonpilz transducer array from 0.675PMN-0.325PT piezoceramics

et al. 2022

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A mid-frequency tonpilz transducer array was designed and analyzed by finite element method using commercial ATILA code and constructed using piezoceramic rings with lead magnesium niobate (PMN)-lead titanate (PT) composition. The morphotropic phase boundary (MPB) 0.675Pb(Mg1/3Nb2/3)O3-0.325PbTiO3 composition was chosen to obtain higher performance from the transducer due to the superior dielectric and electromechanical properties of the MPB compositions. A pure perovskite phase was obtained from the ceramics. Piezoelectric charge coefficient (d33) was measured as 435 pC×N-1. Single tonpilz element and an array consisting of 7-unit array were constructed and later potted in polyurethane for underwater measurements. A second array was also constructed for comparison from commercial hard Pb(Zr,Ti)O3-PZT ceramics. The longitudinal piston mode vibration frequency of the tonpilz transducer was measured around 33 kHz in air and around 35 kHz in water. The PMN-PT based array was found to have a comparable transmit performance and a superior receive performance compared to PZT.

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Section: Introductionmentioning

confidence: 99%

Design, development and characterization of a mid-frequency (35 khz) tonpilz transducer array from 0.675PMN-0.325PT piezoceramics

et al. 2022

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“…Underwater acoustic transducer is a kind of functional device that can convert acoustic and electrical signals into each other and its core component is piezoelectric composite material (Tian et al, 2021;Li et al, 2006;Rouffaud et al, 2015). Compared with 0-3, 1-3 and, 2-3 piezoelectric composites, 3-3 ceramic/polymer composites have a bi-continuous architecture comprising an active ferroelectric ceramic phase and a passive flexible polymer phase, which possess high hydrostatic pressure sensitivity and good coupling properties with water, thereby improving the bandwidth and transmitting and receiving sensitivity of the transducer (Newnham et al, 1978;Tressler et al, 1999;Bowen and Topolov, 2003).…”

Section: Introductionmentioning

confidence: 99%

4D Printing of Lead Zirconate Titanate Piezoelectric Composites Transducer Based on Direct Ink Writing

Zhang

Zhou

et al. 2021

Front. Mater.

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Lead zirconate titanate (PZT) piezoelectric composites used in transducers were fabricated via direct ink writing (DIW) combined with furnace sintering and resin impregnation. A ceramic slurry with a volume fraction of 52 vol% and suitable viscoelasticity was prepared. After post-process, the PZT ceramic specimens showed a nanoscale grain size with a density of 7.63 g/cm3, accounting for 97.8% of the theoretical density. The effects of different printing rod spacing on the electrical properties of composites were evaluated and lucubrated. Finally, an underwater acoustic transducer was assembled by using the PZT piezoelectric composites fabricated by the above method. The electrical signal generated by the underwater acoustic transducer changed autonomously with the acoustic stimulation, which indicated the application mode of 4D printing in functional devices in the future.

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“…Because the application of toxic lead-based materials, such as lead zirconate titanate (PZT) and (1−x)Pb(Mg 1/3 Nb 2/3 )O 3 -xPbTiO 3 (PMN-PT), causes serious environmental concerns, there is an urgent demand for developing lead-free substitutes for ultrasonic imaging applications. BaTiO 3 (BTO), has been widely studied, due to its high dielectric constant, good piezoelectric coefficient, and favorable electromechanical coupling coefficient [1,2,3,4].…”

Section: Introductionmentioning

confidence: 99%

3D Printing of BaTiO3 Piezoelectric Ceramics for a Focused Ultrasonic Array

Cheng

Chen

et al. 2019

Sensors

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BaTiO3 (BTO) ceramics were fabricated based on stereolithography technology. The microstructures and electric properties of the BTO ceramics were studied. X-ray patterns of sintered BTO ceramics indicated that the tetragonal phase had formed, and the grain size increased clearly as BTO weight percentage increased. Moreover, the BTO ceramics exhibited good electric properties, with a piezoelectric constant d33 of 166 pC/N at 80% BTO weight percentage. To evaluate the properties of 3D printed BTO ceramics, a 1.4 MHz focused ultrasonic array was fabricated and characterized. The −6dB bandwidth of the array was 40%, and the insertion loss at the center frequency was 50 dB. The results show that the printed BTO ceramics array have good potential to be used in ultrasonic transducers for various applications.

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Tonpilz Underwater Acoustic Transducer Integrating Lead-free Piezoelectric Material

Cited by 8 publications

References 5 publications

Design, development and characterization of a mid-frequency (35 khz) tonpilz transducer array from 0.675PMN-0.325PT piezoceramics

Design, development and characterization of a mid-frequency (35 khz) tonpilz transducer array from 0.675PMN-0.325PT piezoceramics

4D Printing of Lead Zirconate Titanate Piezoelectric Composites Transducer Based on Direct Ink Writing

3D Printing of BaTiO3 Piezoelectric Ceramics for a Focused Ultrasonic Array

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