Piezoelectric composites: thermal stabilization and improvement of properties

Author

Syrkin, L.N. ; Feoktistova, N.N. ; Kancherova, E.T.

Author_Institution

Res. & Dev. Inst. Morphizpribor, Acad. of Sci., St. Petersburg, Russia

fYear

1991

fDate

33457

Firstpage

190

Lastpage

193

Abstract

Piezoelectric composites containing modified crystals SbSJ as an active phase have very high volume (“hydrostatic”) sensitivity and an acoustic impedance close to that of water. But the dependence of piezoelectric voltage coefficient g_h on temperature T is rather strong. Composites based on the PZT-ceramics, on the other hand, have high thermal stability but comparatively low values of g_h. The aim of this research is improvement of piezoelectric transducers made of both types of composites

Keywords

Poisson ratio; acoustic impedance; antimony compounds; composite materials; lead compounds; piezoceramics; piezoelectric materials; piezoelectric transducers; thermal stability; PZT-ceramics; PbZrO3TiO3Jk; Poisson ratio; SbSI modified crystals; acoustic impedance; high thermal stability; hydrostatic sensitivity; piezoelectric composites; piezoelectric transducers; piezoelectric voltage coefficient; properties; thermal stabilization; Capacitance; Capacitors; Crystals; Piezoelectric transducers; Temperature dependence; Temperature sensors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on

Conference_Location

University Park, PA

Print_ISBN

0-7803-1847-1

Type

conf

DOI

10.1109/ISAF.1994.522335

Filename

522335