Anomalous mechanical and piezoelectric coefficients in piezoceramics used for ignition

Author

Gonnard, P. ; Garabédian, C. ; Ohanessian, H. ; Eyraud, L.

Author_Institution

Lab. de Genie Electrique et Ferroelectricite, Villeurbanne, France

fYear

1992

fDate

30 Aug-2 Sep 1992

Firstpage

581

Lastpage

584

Abstract

An analysis of impact igniters is developed following the classical electromechanical analogies. From a comparison of the model with the experimental characterization of the converter, unusually high values of S^E₃₃, d₃₃, ∈^T ₃₃ coefficients are shown. Furthermore, a significant increase of the loss tangent occurs under dynamic compression. The influence of applied uniaxial stress, the size of the piezoceramics, and their composition are studied

Keywords

ceramics; dielectric losses; elastic constants; electric ignition; piezoelectric materials; anomalous mechanical coefficient; applied uniaxial stress; classical electromechanical analogies; compliance; dynamic compression; electromechanical coefficient; ignition; impact igniter analysis; loss tangent; piezoceramics; piezoelectric coefficients; spark generator; Capacitance; Ceramics; Equivalent circuits; Human factors; Ignition; Microwave integrated circuits; Piezoelectric materials; Sparks; Stress; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1992. ISAF '92., Proceedings of the Eighth IEEE International Symposium on

Conference_Location

Greenville, SC

Print_ISBN

0-7803-0465-9

Type

conf

DOI

10.1109/ISAF.1992.300730

Filename

300730