Phase Transition and Electrical Properties of Li-and Ta-Substituted (Na0.52K0.48)(Nb0.96Sb0.04)O3 Piezoelectric Ceramics

被引：14

作者：

Fu, Jian ^{[1
]}

Zuo, Ruzhong ^{[1
]}

Wu, Yuping ^{[1
]}

Xu, Zhengkui ^{[2
]}

Li, Longtu ^{[3
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Inst Electro Ceram & Devices, Hefei 230009, Peoples R China

[2] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

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

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2008年 / 91卷 / 11期

关键词：

D O I：

10.1111/j.1551-2916.2008.02699.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)(Nb0.96-xSb0.04)O-3-xLiTaO(3) ceramics (x=0.0375-0.0575) have been manufactured by a conventional solid-state method. All compositions form solid solutions with a pure perovskite structure. A morphotropic phase boundary (MPB) between orthorhombic (x <= 0.04) and tetragonal (x >= 0.045) ferroelectric phases was identified in the composition range of the 0.04 < x < 0.045. The composition near the MPB (x=0.0425) exhibits the best electrical properties with a dielectric constant of 1644, a piezoelectric constant of 310 pC/N, a planar-mode electromechanical coupling factor of 0.48, and a Curie temperature of 340 degrees C. The results indicate that the materials studied could be a promising lead-free piezoelectric candidate for device applications.

引用

页码：3771 / 3773

页数：3

共 22 条

[1] Effects of Li content on the phase structure and electrical properties of lead-free (K0.46-x/2Na0.54-x/2Lix)(Nb0.76Ta0.20Sb0.04)O3 ceramics [J].

Chang, Yunfei ;

Yang, Zupei ;

Hou, Yuting ;

Liu, Zonghuai ;

Wang, Zenglin .

APPLIED PHYSICS LETTERS, 2007, 90 (23)

[2] Preparation and piezoelectric properties of (K0.5Na0.5)NbO3 lead-free piezoelectric ceramics with pressure-less sintering [J].

Du, Hongliang ;

Li, Zhimin ;

Tang, Fusheng ;

Qu, Shaobo ;

Pei, Zhibin ;

Zhou, Wancheng .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 131 (1-3) :83-87

[3] 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

[4] Phase transitional behavior and piezoelectric properties of (Na0.5K0.5)NbO3-LiNbO3 ceramics [J].

Guo, YP ;

Kakimoto, K ;

Ohsato, H .

APPLIED PHYSICS LETTERS, 2004, 85 (18) :4121-4123

[5] Property-processing relationship in lead-free (K, Na, Li) NbO3-solid solution system [J].

Hagh, Nader Marandian ;

Jadidian, B. ;

Safari, A. .

JOURNAL OF ELECTROCERAMICS, 2007, 18 (3-4) :339-346

[6] Piezoelectric properties of Li- and Ta-modified (K0.5Na0.5)NbO3 ceramics -: art. no. 182905 [J].

Hollenstein, E ;

Davis, M ;

Damjanovic, D ;

Setter, N .

APPLIED PHYSICS LETTERS, 2005, 87 (18) :1-3

[7]

Jaffe B., 1971, PIEZOELECTRIC CERAMI

[8] Microstructures and piezoelectric properties in the Li2O-Excess 0.95(Na0.5K0.5)NbO3-0.05LiTaO3 ceramics [J].

Kim, Min-Soo ;

Jeong, Soon-Jong ;

Song, Jae-Sung .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (10) :3338-3340

[9] Ferroelectric and piezoelectric properties of fine-grained Na0.5K0.5NbO3 lead-free piezoelectric ceramics prepared by spark plasma sintering [J].

Li, JF ;

Wang, K ;

Zhang, BP ;

Zhang, LM .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2006, 89 (02) :706-709

[10] Phase structures and electrical properties of K0.5Na0.5(Nb0.925Ta0.075)O3-LiSbO3 lead-free piezoelectric ceramics [J].

Lin, Dunmin ;

Kwok, K. W. ;

Chan, H. L. W. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (19) :6060-6065

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