新型压电单晶PMNT的生长和性能研究

Growth and Properties of a new Typical Piezoelectric Sircgle Crystal PMNT

在突破了传统的助溶剂方法生长弛豫铁电单晶限制的基础上,用Bridgman方法生长出了大尺寸高质量的PMNT单晶,并根据它的性能特点,探索了它的潜在应用.结果表明,PMNT单晶在各种压电换能器中有广泛的应用前景.

A new typical piezoelectric single crystal PMNT has the outstanding properties, and will gradually become a replacement of the conventional piezoelectric ceramics, PZT, and can be used for ultrasonic imaging, hydroacustric transducer, high strain actuartors and so on. We surmount a limit of the conventional solvent - assisting method for growing the relaxor fennoeleceric single crystal, now using Bridgman's method, prepare a high-quality and big size crystal PMNT, according to its character, We study its latent application, the results show that single crystal PMNT has a potential applications in piezoelectnic transducers.