P6H-7 Investigation of Morphotropic Phase Boundary PbTiO3-Bi(MgZr)O3 Based Complex Perovskite Ceramics

Author

Sharma, Seema ; Hall, D.A.

Author_Institution

A.N. Coll., Patna

fYear

2007

fDate

28-31 Oct. 2007

Firstpage

2594

Lastpage

2597

Abstract

Ferroelectric ceramics based on the PbZr(_1-x)O₃-PbTi_xO₃ (PZT) perovskite system have come to dominate the market of ferroelectric and piezoelectric ceramics. The high Curie temperature (T_c) of PZT and small temperature dependence of its morphotropic phase boundary (MPB) composition results in a robust dielectric ceramic. Remarkably, very few perovskite systems have been found to possess ferroelectric and piezoelectric properties comparable to those of PZT. Recently high Curie temperature perovskite system, PbTiO₃-BiScO₃ (BS-PT) at MPB was found to possess excellent piezoelectric and electromechanical properties. These investigations gave us an insight to interpret the structure-property relation in complex (x)PbTiO₃-(1-x)BiB\´B"O₃ (where B\´=Mg,B"=Zr) perovskite ceramics, denoted as BMZ-PT ceramics.The effect of BiFeO₃ (BF) modification on the structural and ferroelectric properties of MPB composition of BMZ-PT, denoted as BMZ-BF-PT has also been investigated in this work.

Keywords

electrical conductivity transitions; ferroelectric ceramics; lead compounds; piezoceramics; Curie temperature; PZT; PbTiO₃-Bi(MgZr)O₃; electromechanical property; ferroelectric ceramics; morphotropic phase boundary; perovskite ceramics; piezoelectric ceramics; Ball milling; Ceramics; Dielectrics; Diffraction; Electrons; Ferroelectric materials; Performance evaluation; Powders; Temperature dependence; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2007. IEEE

Conference_Location

New York, NY

ISSN

1051-0117

Print_ISBN

978-1-4244-1384-3

Electronic_ISBN

1051-0117

Type

conf

DOI

10.1109/ULTSYM.2007.653

Filename

4410226