PZT Composite and a fabrication method thereof
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsKenneth A. Klicker, Robert E. Newnham, Leslie E. Cross, James V. Biggers
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Abstract
A composite of PZT (Lead Zirconate Titanate) and a compliant polymer matrix aving 3-1 connectivity (i.e., in a diphasic material, one of the two phases is continuously self-connected in all three mutually perpendicular directions and the second phase is self-connected only along one of the three mutually perpendicular directions) and fabrication method thereof is described. An array of parallel PZT rod elements is embedded in a mechanically compliant polymer matrix with their axes along the direction of the poling electric field. Such a composite has a high value of g.sub.h, d.sub.h and g.sub.33 with very little sacrifice in the value of d.sub.33.
Claims4
A PZT-polymer composite material of 3-1 connectivity which comprises:
- a matrix of a polymer;
- a plurality of PZT rods embedded in said matrix of the polymer each member of said plurality of PZT rods having the longitudinal axis thereof aligned in the same direction;
- and
- means for electrically poling said PZT material with poling field parallel to the direction of the axes of said plurality of PZT rods.
Dependencies are inferred from the claim text.