Effect of Pre-calcined Method on Dielectric,Ferroelectric,and Piezoelectric Properties of Lead-Free Piezoelectric Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)O3 Ceramics
The structure and electrical characteristics of the lead-flee Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)O3 (x=0~0.05) piezoelectric ceramics for the conventional solid-state reaction method and the B-site pre-calcined method were achieved and compared.For the B-site pre-calcined method,the lead-flee ceramic material exhibited the excellent electrical and piezoelectric properties.The relative dielectric constant (εr) and loss (tan δ) of the Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)O3 for x=0.03 using the B-site pre-calcined method were 1223 and 0.021,respectively.In addition,the electromechanical coupling factors (kp) and Curie temperature (TC) was 48.5 % and 315 ℃.Finally,the electrical properties of the lead-flee Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)O3 (x=0~0.05)homogeneity ceramics improved by the B-site pre-calcined method were also investigated and discussed.
KNN-based lead-free ferroelectric properties electromechanical coupling factors (kp)
Min-Chang Kuan Kai-Huang Chen Chien-Min Cheng Chun-Cheng Lin Shih-Fang Chen
Department of Electronics Engineering and Computer Science,Tung-Fang Design University,Kaohsiung,Tai Department of Electronic Engineering,Southern Taiwan University,Tainan,Taiwan Department of Mathematics and Physics,Chinese Air Force Academy,Kangshan,Kaohsiung,Taiwan
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
1218-1221
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）