Composites of PZT and Epoxy for Hydrostatic Transducer Applications
- 1 January 1981
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 64 (1) , 5-9
- https://doi.org/10.1111/j.1151-2916.1981.tb09549.x
Abstract
Composites with 3–1 connectivity for transducer applications were made by embedding extruded PZT rods in an epoxy matrix. The effects of rod diameter, volume fraction of PZT, and composite thickness on the hydrostatic properties of the composites were determined. Due to decoupling of the d̄33 and d̄31 coefficients in a composite with 3–1 connectivity, the d̄n may be enhanced, even in composites of low volume fractions of PZT. Such composites alsojiave a low dielectric permittivity. The combination of high d̄n values and low ɛ33 value results in a greatly enhanced ḡn. Composites with 10 vol% PZT were made with values of d̄h and ḡh which are, respectively, two times (>80×10 −12 C/N) and 25 times (>70×10−3 (V·m/N) the solid PZT values.Keywords
This publication has 2 references indexed in Scilit:
- Connectivity and piezoelectric-pyroelectric compositesPublished by Elsevier ,2003
- Flexible composite transducersMaterials Research Bulletin, 1978