Piezoelectric and Dielectric Properties of (Bi0.5Na0.5)0.94(Ba1-xSrx)0.06TiO3 Lead-Free Piezoelectric Ceramics

2008 ◽  
pp. 1911-1914
Author(s):  
Zhi Wu Chen ◽  
Zhen Ya Lu ◽  
Jian Qiang Hu
Keyword(s):  
Dielectric Properties ◽  
Piezoelectric Ceramics ◽  
Lead Free

Piezoelectric and Dielectric Properties of Bi2O3-Doped (Bi0.5Na0.5)0.94Ba0.06TiO3 Lead-Free Piezoelectric Ceramics

2008 ◽  
Vol 368-372 ◽  
pp. 1915-1918 ◽  
Author(s):  
Jian Qiang Hu ◽  
Zhi Wu Chen
Keyword(s):  
Dielectric Properties ◽  
Electromechanical Coupling ◽  
Relative Dielectric Constant ◽  
Piezoelectric Ceramics ◽  
Electromechanical Coupling Factor ◽  
Coupling Factor ◽  
Lead Free ◽  
Tetragonal Symmetry ◽  
X Ray Diffraction ◽  
Conventional Sintering

Bi2O3 doped (Bi0.5Na0.5)0.94Ba0.06TiO3 (BNBT6) lead-free piezoelectric ceramics were fabricated by a conventional sintering technique. The effects of Bi2O3 on the piezoelectric properties and microstructures of the doped BNBT6 were investigated. X-ray diffraction analysis showed that a solid solution was formed when Bi2O3 diffused into BNBT6 lattice and the crystal structure of the sintered hybrid changed from rhombohedral to tetragonal symmetry with increasing Bi2O3 amount. Piezoelectric and dielectric properties measurements revealed that doping Bi2O3 within a certain range enhanced the piezoelectric coefficient (d33), electromechanical coupling factor (kp), relative dielectric constant (ε33 T/ε0), and dielectric loss (tanδ). When 3mol% Bi2O3 was doped, both d33 and kp of the ceramics reached their maxima, 165pC/N and 24%, respectively.

Structural, Piezoelectric and Dielectric Properties of K0.4Na0.6NbO3-Bi0.5Li0.5ZrO3-CaZrO3 Ternary Lead-Free Piezoelectric Ceramics

2020 ◽  
Vol 49 (7) ◽  
pp. 4364-4371
Author(s):  
Caiwang He ◽  
Xudong Bai ◽  
Jinchuan Wang ◽  
Yunyi Liu ◽  
Yang Lu ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Piezoelectric Ceramics ◽  
Lead Free

Piezoelectric and dielectric properties of Bi0.5Na0.5TiO3–Bi0.5K0.5TiO3–Ba0.77Ca0.23TiO3 lead-free piezoelectric ceramics

2011 ◽  
Vol 47 (7) ◽  
pp. 3354-3360 ◽  
Author(s):  
Feng Ni ◽  
Laihui Luo ◽  
Xiaoyin Pan ◽  
Yuepin Zhang ◽  
Hongbing Chen
Keyword(s):  
Dielectric Properties ◽  
Piezoelectric Ceramics ◽  
Lead Free
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