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

作　　者：罗豪甦[1] 徐海清[1] 王评初[1] 殷庆瑞[1] 殷之文[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海201800

出　　处：《哈尔滨理工大学学报》2002年第6期98-99,104,共3页Journal of Harbin University of Science and Technology

摘　　要：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.

关 键 词：性能研究 新型压电单晶 PMNT单晶 弛豫铁电体 压电系数 机电耦合系数 晶体生长 钛酸铅 

分 类 号：O782[理学—晶体学] TM282[一般工业技术—材料科学与工程]