Broadband ultrasonic linear array using ternary PIN-PMN-PT single crystal

Abstract

(PIN-PMN-PT) single crystal was investigated for potential application in ultrasonic linear array. Orientation and temperature dependences of height extensional electromechanical coupling coefficient k 33 for PIN-PMN-PT single crystal were studied. It was found that the [001] poled PIN-PMN-PT diced along the [100] direction would achieve a maximum k 33 (∼87%) and the service temperature was up to 110• C. Ultrasonic linear arrays using PIN-PMN-PT single crystal and PZT ceramic were fabricated and compared. The bandwidth at −6 dB, two-way insertion loss and pulse length of the PIN-PMN-PT array were 98.6%, −45.1 dB, and 0.28 μs, respectively, which were about 25% broader, 3.7dB higher, and 0.08 μs shorter than those of the PZT array. The experimental results agreed well with the theoretical simulation. These superior performances were attributable to the excellent piezoelectric properties of PIN-PMN-PT single crystal.

In Situ Domain Structure Observation and Giant Magnetoelectric Coupling for PMN‐PT/Terfenol‐D Multiferroic Composites

“…High piezoelectric coefficient (~2000 pC/N) and high electromechanical coupling (k 33 > 90%) could be achieved for <001> oriented rhombohedral single crystals near MPB . Applications of those single crystals caused breakthrough in ultrasonic transducer materials and devices . Various mechanisms are proposed, such as the existence of the monoclinic phases which facilitate polarization rotation, the large piezoelectric shear coefficients of zero‐field rhombohedral and orthorhombic phases, and the “adaptive phase” model where the monoclinic “phases” are actually composed of very finely twinned rhombohedral ( R ) or tetragonal ( T ) domains …”

“…11,[14][15][16] Applications of those single crys-tals caused breakthrough in ultrasonic transducer materials and devices. 17,18 Various mechanisms are proposed, such as the existence of the monoclinic phases which facilitate polarization rotation, 11,13,[19][20][21][22][23][24] the large piezoelectric shear coefficients of zero-field rhombohedral and orthorhombic phases, 25,26 and the "adaptive phase" model where the monoclinic "phases" are actually composed of very finely twinned rhombohedral (R) or tetragonal (T) domains. 27,28 Among the piezomagnetic materials, Terfenol-D (Grirem Advanced Materials Co., Ltd., Beijing, China), is reported to be the one with giant piezomagnetic coefficients.…”

Phase Transition Behaviors in [011]-Oriented Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 Single Crystals Studied by Dielectric and Micro-Brillouin Spectroscopies

“…[1][2][3][4][5][6][7][8][9][10] From the application point of view, shear components of the piezoelectric response have been studied intensively with the aim of applying PIN-PMN-PT as image transducers, actuators, and resonators. [11][12][13][14] Concomitantly, scientific efforts have been focused on the understanding of various properties of PIN-PMN-PT single crystals near the MPB under different poling conditions, magnitudes of external bias fields, and temperatures. [3][4][5][15][16][17] However, extensive studies on the phase transition behaviors of PIN-PMN-PT single crystals are rather scarce, which will be indispensable for accelerating the application of these materials.…”

Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 Piezoelectric Single-Crystal Rectangular Beams: Mode-Coupling Effect and Its Application to Ultrasonic Array Transducers

“…Among them, binary relaxor-based Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 (PMN-PT) single crystals are regarded as one of the most representative types and have received much interest in ultrasonic transducer applications over the past two decades [6][7][8]. More recently, ternary relaxor-based Pb(In 1/2 Nb 1/2 )O 3 -Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 (PIN-PMN-PT) single crystals, especially for those with the PIN:PMN:PT ratio of 0.33:0.35:0.32, have been synthesized and evaluated to show similarly strong piezoelectric properties as well as significantly higher MPB temperature, Curie temperature, and coercive field when compared with the PMN-PT single crystals [9][10][11][12][13].…”