Effect of Y-doping on the piezoelectric properties of (1-x)BiScO3-xPbTiO3 high-temperature piezoelectric ceramics

Author

Li, Qishou ; Shi, Wei ; Jiang, Yuzhi ; Pei, Ying ; Chen, Qiang ; Yue, Xi ; Xiao, Dingquan ; Zhu, Jianguo

Author_Institution

Coll. of Mater. Sci. & Eng., Sichuan Univ., Chengdu, China

fYear

2009

fDate

23-27 Aug. 2009

Firstpage

1

Lastpage

4

Abstract

(1-x)Bi(Sc_1-yY_y)O₃-xPbTiO₃ (BSYPTx/y) ceramics were prepared by the conventional mixed oxide method. It was found that the morphotropic phase boundary (MPB) between rhombohedral and tetragonal phase of BSYPTx/y system was moved to the lower PT content with increasing of BiYO₃ content. The Curie temperature (T_C) near MPB of BSYPTx/y ceramics was found to increase with increasing of BiYO₃ content. However, the piezoelectric properties (d₃₃ and k_p) decreased with increasing of BiYO₃ content. BSYPTx/y ceramics with x = 0.56, y = 0.2 showed a high T_C of 490degC and a large d₃₃ of 147 pC/N.

Keywords

bismuth compounds; dielectric losses; dielectric relaxation; doping profiles; ferroelectric Curie temperature; high-temperature effects; lead compounds; permittivity; piezoelectricity; Bi(Sc_1-yY_y)O₃-PbTiO₃; Curie temperature; conventional mixed oxide method; dielectric constant; dielectric loss; dielectric relaxation; doping effect; ferroelectric property; high-temperature piezoelectric ceramic preparation; morphotropic phase boundary; piezoelectric property; temperature 490 C; Acoustic measurements; Aerospace industry; Ceramics; Dielectric measurements; Materials science and technology; Physics; Piezoelectric materials; Powders; Temperature dependence; Temperature sensors; BSPT; high-curie temperature; piezoelectric;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2009. ISAF 2009. 18th IEEE International Symposium on the

Conference_Location

Xian

ISSN

1099-4734

Print_ISBN

978-1-4244-4970-5

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2009.5307539

Filename

5307539