Title :
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
fDate :
30 Aug-2 Sep 1992
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 SE33, 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;
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
DOI :
10.1109/ISAF.1992.300730
