PZT-5 Under Pressure Dielectric and Piezoelectric Properties

Abstract

The permittivity and the piezoelectric coefficients of hot-pressed PZT-5 are studied under variations of the ambient pressure up to 3 kbars and variations of the grain size. Two methods for the piezoelectric coefficients do not agree and it is concluded that one of them (and also the permittivity) is affected by domain wall movements. It is possible that the non-domain portion of dh is negative