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

Merve Nur  ÇİFTÇİ; Berk  DEĞİRMENCİ; Irem  BÖBREK; Sedat  ALKOY; Aykut  AYKAÇ; Muhammet  BOZ; Ayşe  BERKSOY-YAVUZ; Ezgi  YALCIN; Namik K.  GOZUACIK; Ebru  MENŞUR

doi:10.55713/jmmm.v32i1.1249

ผู้แต่ง

Merve Nur ÇİFTÇİ Dept. of Materials Sci. & Eng., Gebze Technical University, 41400 Kocaeli, Turkey.
Berk DEĞİRMENCİ Dept. of Materials Sci. & Eng., Gebze Technical University, 41400 Kocaeli, Turkey.
Irem BÖBREK Dept. of Materials Sci. & Eng., Gebze Technical University, 41400 Kocaeli, Turkey.
Sedat ALKOY Dept. of Materials Sci. & Eng., Gebze Technical University, 41400 Kocaeli, Turkey.
Aykut AYKAÇ Dept. of Materials Sci. & Eng., Gebze Technical University, 41400 Kocaeli, Turkey.
Muhammet BOZ Dept. of Materials Sci. & Eng., Gebze Technical University, 41400 Kocaeli, Turkey.
Ayşe BERKSOY-YAVUZ Dept. of Metallurgical & Materials Eng., Gedik University, Istanbul, Turkey.
Ezgi YALCIN Dept. of Metallurgical & Materials Eng., Gedik University, Istanbul, Turkey.
Namik K. GOZUACIK Dept. of Metallurgical & Materials Eng., Gedik University, Istanbul, Turkey.
Ebru MENŞUR Dept. of Materials Sci. & Eng., Gebze Technical University, 41400 Kocaeli, Turkey.

DOI:

https://doi.org/10.55713/jmmm.v32i1.1249

คำสำคัญ:

Tonpilz transducer, Piezoelectricity, PMN-PT, FEA

บทคัดย่อ

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(Mg_1/3Nb_2/3)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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