Fine grains ceramics of PIN-PT, PIN-PMN-PT and PMN-PT systems: drift of the dielectric constant under high electric field.
Ultrasonics
; 44 Suppl 1: e627-31, 2006 Dec 22.
Article
en En
| MEDLINE
| ID: mdl-16793076
ABSTRACT
Lead-based ferroelectric ceramics with (1-x)Pb(B1 B2)O3-xPbTiO3 formula have emerged as a group of promising materials for various applications like ultrasonic sonars or medical imaging transducers. (1-x)PMN-xPT, (1-x)PIN-xPT and ternary solutions xPIN-yPMN-zPT ceramics are synthesised using the solid state reaction method. Our objective is to achieve higher structural transition temperatures than those of PMN-PT ceramics with as good dielectric, piezoelectric and electromechanical properties. Ceramics capacitance and loss tangent are measured when the ac field of measurement increases up to E=500 V/mm. Behaviours of these materials under ac field are related to their coercive field and Curie temperature.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Ultrasonics
Año:
2006
Tipo del documento:
Article