Title :
Preparation and characterization of yBiGaO3-(1-x-y)BiScOs3-xPbTiO3 piezoelectric ceramics
Author :
Jiang, Yihang ; Qin, Baoquan ; Chen, Yi ; Huang, Wei ; Zhao, Yi ; Jiang, Yuzhi ; Xiao, Dingquan ; Zhu, Jianguo
Author_Institution :
Sichuan Univ., Chengdu
fDate :
12/1/2007 12:00:00 AM
Abstract :
The ternary system of j/BiGaO3-(1-x-y) BiScO3-xPbTiO3 (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 BGS-PT 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 TC and a large piezoelectric constant d33 of 501degC and 152 pC/N, respectively. The high TC of BGS-PT ceramics with usable piezoelectric properties suggests future high-temperature applications.
Keywords :
X-ray diffraction; bismuth compounds; ferroelectric Curie temperature; lead compounds; piezoceramics; piezoelectricity; BiGaO3-BiScO3-PbTiO3; Curie temperature; X-ray diffraction; piezoelectric ceramics; piezoelectric constant; piezoelectric properties; Acoustic measurements; Ceramics; Dielectric measurements; Piezoelectric materials; Piezoelectric polarization; Powders; Smelting; Temperature dependence; Temperature sensors; X-ray diffraction; Acoustics; Ceramics; Crystallization; Electric Impedance; Electrochemistry; Equipment Design; Equipment Failure Analysis; Lead; Materials Testing; Reproducibility of Results; Sensitivity and Specificity; Temperature; Titanium; Transducers;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2007.568
