Accession Number : ADD013693

Title :   1-3-0 Connectivity Piezoelectric Composite with Void.

Descriptive Note : Patent Application, Filed 30 Jan 87,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Haun, Michael J ; Newnham, Robert E

Report Date : 30 Jun 1987

Pagination or Media Count : 14

Abstract : A composite of PZT (Lead Zirconate Titanate) and a compliant polymer having 1-3-0 connectivity is described. A polymer self-connected in all three mutually perpendicular directions with a void in the center has an array of parallel PZT rod elements embedded therein and extending through the void. The void isolates a region of the PZT rods from the polymer. The axes of the PZT rods are along the direction of the poling electric field. Such an arrangement significantly enhances the hydrostatic piezoelectric charge and voltage coefficients d sub h and g sub h. Keywords: Piezoelectric materials; Hydrophones; Hydrostatic pressure.

Descriptors :   *LEAD TITANATES, *PIEZOELECTRIC MATERIALS, *POLYMERS, *ZIRCONATES, *PATENT APPLICATIONS, COEFFICIENTS, ELASTIC PROPERTIES, HYDROPHONES, HYDROSTATIC PRESSURE, MATERIALS, ORIENTATION(DIRECTION), RIGHT ANGLES, RODS, VOLTAGE

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE