EFFECT OF Nb SUBSTITUTION ON THE PIEZOELECTRIC AND DIELECTRIC PROPERTIES OF 0.95(K0.5Na0.5) NbO3-0.05Li (Sb1-xNbx)O3 CERAMICS

被引：16
作者：
Yoo, Juhyun [1 ]
Kim, Dohyung [1 ]
Lee, Yuhyeong [1 ]
Lee, Ilha [1 ]
Lee, Sangho [1 ]
Kim, Insung [2 ]
Song, Jaesung [2 ]
机构：
[1] Semyung Univ, Dept Elect Engn, Jechon 390711, Chungbuk, South Korea
[2] Piezoelect Devices Res Grp KERI, Chang Won 64112, South Korea
来源：
INTEGRATED FERROELECTRICS | 2009年 / 105卷
关键词：
lead-free ceramics; piezoelectric constant; (Na; K)NbO3; electromechanical coupling factor; dielectric constant;
D O I：
10.1080/10584580903039299
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, lead-free 0.95(K0.5Na0.5)NbO3-0.05Li(Sb1 - xNbx)O3 system ceramics were fabricated according to the amount of Nb substitution for Sb site of LiSbO3 ceramics and their dielectric and piezoelectric characteristics were investigated. With increasing the amount of Nb substitution, electromechanical coupling factor (kp), density and piezoelectric constant (d33) increased up to 1mol% Nb and decreased above 1mol% Nb. With increasing the amount of Nb substitution, dielectric constant linearly decreased and Curie temperature increased. At the 1mol% Nb substitution composition ceramics sintered at 1040 degrees C, electromechanical coupling factor (kp), density, dielectric constant (epsilon r), piezoelectric constant (d33) and Curie temperature (Tc) showed the optimal value of 0.41, 4.35 g/cm3, 789, 206 pC/N and 395 degrees C, respectively for piezoelectric device application.
引用
收藏
页码：18 / 26
页数：9
相关论文
共 11 条
[1]   PIEZOELECTRIC AND DIELECTRIC PROPERTIES OF CERAMICS IN THE SYSTEM POTASSIUM SODIUM NIOBATE [J].
EGERTON, L ;
DILLON, DM .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1959, 42 (09) :438-442
[2]   (Na0.5K0.5)NbO3-LiTaO3 lead-free piezoelectric ceramics [J].
Guo, YP ;
Kakimoto, K ;
Ohsato, H .
MATERIALS LETTERS, 2005, 59 (2-3) :241-244
[3]   HOT PRESSING OF POTASSIUM-SODIUM NIOBATES [J].
JAEGER, RE ;
EGERTON, L .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1962, 45 (05) :209-213
[4]  
Jaffe B., 1971, Piezoelectric Ceramics
[5]   Multilayer ceramic actuators [J].
Uchino, K ;
Takahashi, S .
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 1996, 1 (05) :698-705
[6]  
Wanders J.W., 1991, PIEZOELECTRIC CERAMI
[7]   Piezoelectric properties of LiSBO3-Modified (K0.48Na0.52)NbO3 lead-free ceramics [J].
Wu, Jiagang ;
Wang, Yuanyu ;
Xiao, Dingquan ;
Zhu, Jianguo ;
Yu, Ping ;
Wu, Lang ;
Wu, Wenjuan .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2007, 46 (11) :7375-7377
[8]  
Xu Y., 1991, FERROELECTRIC MAT TH
[9]   Electrical characteristics of the contour-vibration-mode piezoelectric transformer with ring/dot electrode area ratio [J].
Yoo, J ;
Yoon, K ;
Lee, Y ;
Suh, S ;
Kim, J ;
Yoo, C .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2000, 39 (5A) :2680-2684
[10]   Perovskite (Na0.5K0.5)1-x(LiSb)xNb1-xO3 lead-free piezoceramics [J].
Zang, Guo-Zhong ;
Wang, Jin-Feng ;
Chen, Hong-Cun ;
Su, Wen-Bin ;
Wang, Chun-Ming ;
Qi, Peng ;
Ming, Bao-Quan ;
Du, Juan ;
Zheng, Li-Mei .
APPLIED PHYSICS LETTERS, 2006, 88 (21)
12