Development of PZT-Based Single Crystals as High-T and High-Performance Piezoelectric Materials

来源 :2015两岸超声技术与医学研讨会 | 被引量 : 0次 | 上传用户:gebmmi
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Background,Motivation and Objective Lead zirconate-titanate solid solution,PbZr1-xTixO3(PZT),has been widely used in electromechanical stransducers and extensively studied for both applied and fundamental research,but almost exclusively in the forms of ceramics and thin films because of the difficulties encountered in growing PZT single crystals.On the other hand,the relaxor-based PMN-PT and PZN-PT(Generation Ⅰ) and PIN-PMN-PT(Generation Ⅱ) single crystals exhibit excellent piezoelectric properties,but suffer from a low Curie temperature and a small coercive field which make them unsuitable for high-temperature and high-power applications.Therefore,it is of particular interest to grow large single crystals of PZT for thorough characterization of the anisotropic properties,and also for potential applications.The objective of this work is to synthesize the PZTbased single crystals and to characterize their piezo-/ferroelectric properties,domain structures,phase transitions,and micro polar structures in order to understand the structure-property relations.
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