PROGRESSES AND FURTHER CONSIDERATIONS ON THE RESEARCH OF PEROVSKITE LEAD-FREE PIEZOELECTRIC CERAMICS  

作　　者：DINGQUAN XIAO 

机构地区：[1]Department of Materials Science,Sichuan University Chengdu 610064,P.R.China

出　　处：《Journal of Advanced Dielectrics》2011年第1期33-40,共8页先进电介质学报（英文）

基　　金：This work was supported by National Science Foundation of China(NSFC Nos.59972020,50410179,50572066,50772068,and 50972095);Foundation of Doctor Training Programin University and College in China(Nos.20030610035 and 20080610020).The author thanks Mrs.Wu Wenjuan for her assistance in preparing the manuscript。

摘　　要：The research on lead-free piezoelectric ceramics has been one of the importantfields worldwide for years for the sustainable development of the world.In recent years,the author and his group concentrated their work on perovskite lead-free piezoelectric ceramics,especially on(Bi_(1/2)Na_(1/2))TiO_(3)(BNT)-and K_(1/2)Na_(1/2)NbO_(3)(KNN)-based ceramics.In this paper,the researches of the composition design on BNT-and KNN-based lead-free piezoelectric ceramics,the effects of doping on the properties of these ceramics,the study of the temperature stability of these ceramics,and the fabrication technique used in the author's group for these ceramics are reviewed,and the further considerations and some prospects to be resolved in coming years from the viewpoint of the device applications of these ceramics are suggested.

关 键 词：Lead-free piezoelectric ceramics (Bi_(1/2)Na_(1/2))TTiO_(3)(BNT) K_(1/2)Na_(1/2)NbO_(3)(KNN) perovskite structure 

分 类 号：TQ1[化学工程]