1-3-0 Connectivity piezoelectric composite with void
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsMichael J. Haun, Robert E. Newnham
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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.
Claims4
A PZT-polymer composite of 1-3-0 connectivity comprising:
- a matrix of a polymer containing a void in the center thereof;
- a plurality of PZT rods embedded in said matrix and extending through the void, each member of said pluraity of PZT rods having its longitudinal axis aligned in the same direction;
- and
- means for polarizing the composite with a field parallel to the axes.
Dependencies are inferred from the claim text.