Abstract
Single crystals of lead magnesium niobate/lead titanate (PMN-PT) and lead zinc niobate/lead titanate (PZN-PT) are currently under investigation as high-performance piezoelectric transducer materials. In particular the high-strain (>1.0%) and high-coupling factor (k33>0.90) potentially allow the design of sonar transducers with greatly increased power density and bandwidth. In this talk the properties of single crystal material will be discussed as they pertain to sonar transducers, and some ongoing single crystal transducer developments will be reviewed. [Work supported by DARPA and ONR.]
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