Relaxor Ferroelectric Crystals For Medical Ultrasound Transducer Application

摘要

<正>Relaxor-based ferroelectric single crystal Pb(Mg1/3Nb2/3)O3-PbTiO3（PMN-PT）has drawn much more attention in the ferroelectric field because of its excellent piezoelectric properties near the morphotropic phase boundary（MPB）.The piezoelectric constant d33and electromechanical coupling coefficient k33are>1500 pC/N and0.9,