PZT Composite and a fabrication method thereof

US4412148A · kind A · utility

Assignee

• United States of America as represented by the Secretary of the Air Force · US

Inventors

• Kenneth A. Klicker · Whitehall, US
• Robert E. Newnham · State College, US
• Leslie E. Cross · State College, US
• James V. Biggers · State College, US

Key dates

• Filing date: Apr 24, 1981
• Grant date: Oct 25, 1983
• Expiry date: Apr 24, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S310/80

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.