Phase Transformation and Tunable Piezoelectric Properties of Lead-Free (Na0.52K0.48-xLix)(Nb1-x-ySbyTax)O3 System

被引：164
作者：
Zuo, Ruzhong [1 ]
Fu, Jian [1 ]
Lv, Danya [1 ]
机构：
[1] Hefei Univ Technol, Sch Mat Sci & Engn, Inst Electro Ceram & Devices, Hefei 230009, Peoples R China
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2009年 / 92卷 / 01期
关键词：
ELECTRICAL-PROPERTIES; CERAMICS;
D O I：
10.1111/j.1551-2916.2008.02871.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Lead-free (Na0.52K0.48-x)(Nb1-x-ySby)O-3-xLiTaO(3) (NKNS-LT) piezoelectric ceramics have been fabricated by ordinary sintering. A special attention was paid to the composition design through which the dielectric and piezoelectric properties of the (Li, Ta, Sb) modified NKN systems were significantly promoted. A property spectrum was generated with a particular discussion on the relationship between the Sb content, the LT content, the polymorphic phase transition, and the electrical properties and their temperature stability. Excellent and tunable electrical properties of d(33)=242-400 pC/N, k(p)=36%-54%, epsilon(T)(33) = 750_2500, and T-c=230 degrees-430 degrees C demonstrate a tremendous potential of the compositions studied for device applications.
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收藏
页码：283 / 285
页数：3
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