Sodium lithium niobate lead-free piezoceramics for high-power applications:Fundamental,progress,and perspective  

作　　者：Chen-Bo-Wen LI Zhao LI Juan WANG Yi-Xuan LIU Jing-Tong LU Ze XU Pak-Sheng SOON Ke BI Chuan CHEN Ke WANG 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China [3]Department of Stomatology,Beijing Jishuitan Hospital,Beijing 100035,China [4]Department of Electric Power Sensing Technology,State Grid Smart Grid Research Institute Co.,Ltd.,Beijing 102211,China

出　　处：《Journal of Advanced Ceramics》2023年第1期1-23,共23页先进陶瓷（英文）

基　　金：support from Beijing Municipal Science and Technology Commission (No.Z201100004520018);supported by the National Natural Science Foundation of China (Nos.52032005 and U2241243);Beijing Natural Science Foundation (Nos.JQ20009 and JQ22010).

摘　　要：With the capability of interconversion between electrical and mechanical energy,piezoelectric materials have been revolutionized by the implementation of perovskite-piezoelectric-ceramic-based studies over 70 years.In particular,the market of piezoelectric ceramics has been dominated by lead zirconate titanate for decades.Nowadays,the research on piezoelectric ceramics is largely driven by cutting-edge technological demand as well as the consideration of a sustainable society.Hence,environmental-friendly lead-free piezoelectric materials have emerged to replace lead-based Pb(Zr,Ti)O_(3)(PZT)compositions.Owing to the inherent high mechanical quality factor(Q_(m))and low energy loss,(Li,Na)NbO_(3)(LNN)materials have recently drawn increasing attention and brought advantages to high-power piezoelectric applications.Although the crystallographic structures of LNN materials were intensively investigated for decades,the technical strategies for electrical performance are still limited.As a result,the property enhancement appears to have approached a plateau.This review traces the progress in the development of LNN materials,starting from the polymorphism in terms of the crystal structures,phase transitions,and local structural distortions.Then,the key milestone works on the functional tunability of LNN are reviewed with emphasis on involved engineering approaches.The exceptional performance at a large vibration velocity makes LNN ceramics promising for high-power applications,such as ultrasonic welding(UW)and ultrasonic osteotomes(UOs).The remaining challenges and some strategic insights for synergistically engineering the functional performance of LNN piezoceramics are also suggested.

关 键 词：sodium lithium niobate LEAD-FREE piezoelectric performance high-power applications 

分 类 号：TM53[电气工程—电器] TQ174.7[化学工程—陶瓷工业]