PMN-PT Ferroelectric Relaxor Crystal and Its Ultrasonic Transducer

Journal of Inorganic Materials

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PMN-PT Ferroelectric Relaxor Crystal and Its Ultrasonic Transducer

LI Guo-Rong; LUO Hao-Su; YIN Qing-Rui

Laboratory of Functional Inorganic Materials; Shanghai Institute of Ceramics; Chinese Academy of Sci- ences; Shanghai 200050; China

Received:2000-12-05 Revised:2001-03-20 Published:2001-11-20 Online:2001-11-20

Abstract

Abstract: The electric and mechanical properties of PMN-PT (67/33) ferroelectric relaxor crystal were measured. The piezoelectric and dielectric properties of PMN-PT crystal was discussed in comparison with the generally used piezoelectric ceramics and polymer. The performances of the unturned PMN-PT ultrasonic transducer with longitudinal vibration mode was evaluated. The influence of the PMN-PT dielectric and mechanical loss on impedance and transducer loss were discussed.

Key words: PMN-PT single crystal, piezoelectricity, dielectrics, transducer

CLC Number:

TM22

LI Guo-Rong,LUO Hao-Su,YIN Qing-Rui. PMN-PT Ferroelectric Relaxor Crystal and Its Ultrasonic Transducer[J]. Journal of Inorganic Materials.

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PMN-PT Ferroelectric Relaxor Crystal and Its Ultrasonic Transducer

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