Na1-xKxNbO3 (x=0.2∼0.8) lead-free piezoelectric ceramics prepared by spark plasma sintering

被引：4

作者：

Wang, Ke ^{[1
]}

Zhang, Bo-Ping ^{[2
]}

Li, Jing-Feng ^{[1
]}

Liu, Hong-Jin ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

HIGH-PERFORMANCE CERAMICS IV, PTS 1-3 | 2007年 / 336-338卷

基金：

中国国家自然科学基金;

关键词：

Na1-xKxNbO3; lead-free piezoelectric ceramics; spark plasma sintering (SPS);

D O I：

10.4028/www.scientific.net/KEM.336-338.224

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：

Highly dense Nal(1-x)K(x)NbO(3) (x=0.2 similar to 0.8) ceramics were successfally prepared using spark plasma sintering (SPS) at temperature as low as 920 degrees C. Solid solutions were formed during the composition range investigated. The piezoelectric constant and planar mode electromechanical coupling coefficient are significantly dependent on the Na/K ratio, with the maximum value of 148 pC/N and 38.9% at the composition Na0.5K0.5NbO3.

引用

页码：224 / +

页数：2

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