Preparation and characterization of yBiGaO(3)-(1-x-y)BiScO(3)-xPbTiO(3) piezoelectric ceramics.
The ternary system of yBiGaO(3)-(1-x-y)BiScO(3)-xPbTiO(3) (BGS-PT) ceramics was prepared by using conventional mixing oxide processing. X-ray diffraction analysis revealed that the BGS-PT ceramics showed the perovskite structure. The Curie temperature (TC) of BGSPT ceramics was found to increase with increasing BiGaO3 content. However, a larger BiGaO3 content led to sharply decreased piezoelectric properties, and the secondary phase was formed in the BGS-PT system. BGS-PT ceramics with x = 0.56, y = 0.19 showed a high Curie temperature T(C) and a large piezoelectric constant d(33) of 501??C and 152 pC/N, respectively. The high T(C) of BGS-PT ceramics with usable piezoelectric properties suggests future high-temperature applications.
Jiang
Yihang
Y
College of Materials Science and Engineering, Sichuan University, Chengdu, China. nic0400@scu.edu.cn
Qin
Baoquan
B
Chen
Yi
Y
Huang
Wei
W
Zhao
Yi
Y
Jiang
Yuzhi
Y
Xiao
Dingquan
D
Zhu
Jianguo
J
D000162:Acoustics / Q000295:instrumentation*; D002516:Ceramics / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D017097:Electric Impedance; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007854:Lead / Q000737:chemistry*; D008422:Materials Testing; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013696:Temperature; D014025:Titanium / Q000737:chemistry*; D014159:Transducers
C481719:lead titanate; D007854:Lead; D014025:Titanium