Single crystal PMN-0.33PT/epoxy 1-3 composites for ultrasonic transducer applications

Cheng, Ka Wai Eric; Chan, Helen Lai Wah; Choy, C. L.; Yin, Qingrui; Luo, Hongliang; Zhang, Yin

doi:10.1109/tuffc.2003.1235328

Cited by 128 publications

(73 citation statements)

References 11 publications

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“…[001] c Pb(Mg 1/3 Nb 2/3 )O 3 -xPbTiO 3 (PMN-xPT) single crystals with compositions close to morphotropic phase boundary (MPB) are well known as typical relaxor ferroelectrics with ultrahigh piezoelectric coefficient (d 33 > 2000 pC/N) and electromechanical coupling factor (k 33 > 0.9) [5], with various high-tech applications, such as sonar transducers, medical ultrasonic detectors, actuators, to name a few [6][7][8]. The thermal stability of dielectric and piezoelectric properties of PMN-xPT single crystals is very important for most electromechanical applications.…”

Section: Introductionmentioning

confidence: 99%

Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal

Liu

Yan

et al. 2014

Crystals

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Relaxor [011] c PMN-0.35PT single crystal phase transition characteristics are investigated through various methods including variable temperature dielectric properties, X-ray diffraction, bipolar ferroelectric hysteresis loops (P-E) and electric-field-induced strain (S-E) hysteresis loops measurements. The results reveal that two phase transitions exist within the range from room temperature to 250 °C : orthorhombic (O)-tetragonal (T)-cubic (C). The O-to-T and T-to-C phase transition temperatures have been identified as 84 °C and 152 °C , respectively. Diffuseness degree of the T-to-C phase transition for the unpoled single crystal has been calculated to be 1.56, implying an intermediate state between normal and relaxor ferroelectrics. Temperature-dependent remanent polarization (P r ), coercive field (E c ), saturation polarization (P s ), hysteresis loop squareness (R sq ), and longitudinal piezoelectric constant (d * 33 ) are also explored to learn the details of the phase transitions. Variable temperature unipolar S uni -E hysteresis loops avail additional evidence for the microstructure change in the as-measured single crystal.

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Section: Introductionmentioning

confidence: 99%

Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal

Liu

Yan

et al. 2014

Crystals

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“…[1][2][3][4] Nevertheless, speeding up the poling process as well as enhancing the properties are still the challenges for manufacturers using the composites in production. It is generally believed that during the poling process, space charges in the polymer phase will drift and accumulate at the particle-matrix interfaces ͑this is the reason for the long poling time, e.g., 1 h or even longer͒.…”

Section: Introductionmentioning

confidence: 99%

A poling study of lead zirconate titanate∕polyurethane 0–3 composites

Lau

Kwok

Shin

et al. 2007

Journal of Applied Physics

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0-3 composites of lead zirconate titanate particles dispersed in a thermoplastic elastomer polyurethane matrix were fabricated. The dielectric permittivity and loss of the composite film were measured and compared to the theoretical values. The composites were polarized by the ac fields at different frequencies. With the application of the Sawyer-Tower circuit, the D-E hysteresis loops of the composites can be measured during the poling process. By decreasing the poling frequency, the composite sample shows a larger "remanent" polarization at the same poling field. To evaluate the poling effectiveness, the pyroelectric coefficients of the poled composite samples were measured by a dynamic method.

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“…For comparison, the commonly used piezoelectric ceramic lead zirconate titanate (PZT-5H) has a d 33 of ~ 600 pC/N and a k 33 of ~ 0.75. The PMN-PT single crystals have been shown to provide better sensitivity and bandwidth than PZT when used in medical imaging transducers [5][6]. However, there is little work reported on the study of their use in resonator applications.…”

Section: Introductionmentioning

confidence: 99%

Study of PMN-PT Single Crystals for Resonator Applications

Wong

Kwok

Chan

2006

2006 IEEE International Frequency Control Symposium and Exposition

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Abstract-In this paper, the use of a lead magnesium niobatelead titanate (PMN-PT) single crystal disk as a resonator has been explored. Finite Element Method (FEM) has been used to simulate both the impedance spectrum and vibration displacement for the PMN-PT disk. Because of the spurious modes, the disk with a full electrode or a partial electrode does not exhibit a clean resonance peak of the fundamental thickness mode vibration. However, a partial electrode can effectively confine the fundamental mode vibration in the electroded region, while the spurious mode vibration still spreads over the whole disk. By using an epoxy support along the edge, these spurious mode vibrations can be absorbed and a clean resonance response can be obtained. In addition to the excellent piezoelectric properties, the PMN-PT single crystal should be a promising material for resonator applications.

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Single crystal PMN-0.33PT/epoxy 1-3 composites for ultrasonic transducer applications

Cited by 128 publications

References 11 publications

Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal

Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal

A poling study of lead zirconate titanate∕polyurethane 0–3 composites

Study of PMN-PT Single Crystals for Resonator Applications

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