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Piezoelectric materials are at the heart of electromechanical devices, such as medical imaging transducer, high intensity focused ultrasound (HIFU), industrial nondestructive evaluation (NDE) and piezoelectric sensors, to name a few. In this presentation, the advantages and disadvantages of piezoelectric materials are discussed based on the requirements (figure of merit) of various applications, with...
Relaxor-PbTiO 3 (PT) based ferroelectric crystals with the perovskite structure have been investigated over the last few decades due to their ultrahigh piezoelectric coefficients (d 33 >1500pC/N) and electromechanical coupling factors (k 33 >90%), far outperforming state-of-the-art ferroelectric polycrystalline Pb(Zr,Ti)O 3 ceramics, and are at the forefront of...
Piezoelectric materials lie at the heart of electromechanical devices. Applications include actuators, ultrasonic imaging, high intensity focused ultrasound, underwater ultrasound, nondestructive evaluation transducer, pressure sensors, and accelerometers, to name a few. In this work, the advantages and disadvantages of relaxor-PbTiO3-based single crystals are discussed, based on the requirements...
Pb(Mg1/3Nb2/3)O3-PbTiO3 based ferroelectric single crystals have been extensively studied for various applications. In this paper, the advantages and issues of crystals are discussed, based on requirements of transducers, actuators and sensors, with emphasis on Pb(In0.5Nb0.5)O3- Pb(Mg1/3Nb2/3)O3-PbTiO3 crystals.
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