Piezoelectric properties of (Na0.5K0.5-xLix)NbO3 ceramics

被引：0

作者：

Qi, Peng ^{[1
]}

Wang, Jinfeng ^{[1
]}

Ming, Baoquan ^{[1
]}

Du, Juan ^{[1
]}

Liang, Xinghua ^{[1
]}

Zheng, Limei ^{[1
]}

机构：

[1] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2007年 / 23卷 / 06期

关键词：

lead-free; piezoelectric; dielectric; morphotropic phase boundary;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lead-free piezoelectric ceramics (Na0.5K0.5-xLix)NbO3 (x=0.057-0.066) were synthesized by an ordinary sintering technique. Substituting Li for K can lead to structural distortion, which improves the Curie temperature (T-C) greatly. By adding appropriate LiNbO3 content, piezoelectric constant d(33) values reach 202-212 pC/N. Electromechanical coefficients of the planar mode reach 44.4%-46.8%. The dielectric loss is below 2.6%, which is much lower than reported (about 50%). The T-C of (Na0.5K0.5-xLix)NbO3 (x=0.057-0.066) is in the range of 490-510 degrees C, at least 70 degrees C higher than that of pure (Na0.5K0.5)NbO3 ceramics. The results show that (Na0.5K0.5-xLix)NbO3 ceramic is a kind of good lead-free high-temperature piezoelectric material.

引用

页码：833 / 836

页数：4

共 21 条

[1] Lead-free high-strain single-crystal piezoelectrics in the alkaline-bismuth-titanate perovskite family
Chiang, YM
Farrey, GW
Soukhojak, AN
[J]. APPLIED PHYSICS LETTERS, 1998, 73 (25) : 3683 - 3685
[2] Electrical properties of Na1/2Bi1/2TiO3-BaTiO3 ceramics
Chu, BJ
Chen, DR
Li, GR
Yin, QR
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (13) : 2115 - 2121
[3] PIEZOELECTRIC AND DIELECTRIC PROPERTIES OF CERAMICS IN THE SYSTEM POTASSIUM SODIUM NIOBATE
EGERTON, L
DILLON, DM
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1959, 42 (09) : 438 - 442
[4] (Na0.5K0.5)NbO3-LiTaO3 lead-free piezoelectric ceramics
Guo, YP
Kakimoto, K
Ohsato, H
[J]. MATERIALS LETTERS, 2005, 59 (2-3) : 241 - 244
[5] Phase transitional behavior and piezoelectric properties of (Na0.5K0.5)NbO3-LiNbO3 ceramics
Guo, YP
Kakimoto, K
Ohsato, H
[J]. APPLIED PHYSICS LETTERS, 2004, 85 (18) : 4121 - 4123
[6] PROPERTIES OF HOT-PRESSED FERROELECTRIC ALKALI NIOBATE CERAMICS
HAERTLING, GH
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1967, 50 (06) : 329 - +
[7] Piezoelectric properties of Li- and Ta-modified (K0.5Na0.5)NbO3 ceramics -: art. no. 182905
Hollenstein, E
Davis, M
Damjanovic, D
Setter, N
[J]. APPLIED PHYSICS LETTERS, 2005, 87 (18) : 1 - 3
[8] Electrical properties of piezoelectric sodium-potassium niobate
Ichiki, M
Zhang, L
Tanaka, M
Maeda, R
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (06) : 1693 - 1697
[9] HOT PRESSING OF POTASSIUM-SODIUM NIOBATES
JAEGER, RE
EGERTON, L
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1962, 45 (05) : 209 - 213
[10] Ferroelectric and piezoelectric properties of kNbO3 ceramics containing small amounts of LaFeO3
Kakimoto, K
Masuda, I
Ohsato, H
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2003, 42 (9B): : 6102 - 6105

← 1 2 3 →