Abstract

The influence of ferroelectric poling temperature and electric field amplitude on the piezoelectric coefficient d33 is investigated in a commercial lead zirconate titanate ceramic. A strong dependence of the electric field amplitude on the direct d33 coefficient is observed. The converse d33 piezoelectric coefficient of samples poled at specific conditions is measured and interpreted in the context of Rayleigh Law. Samples poled at higher temperatures and electric fields exhibit both a higher direct d33 coefficient and a higher extrinsic contribution to the converse d33 coefficient than samples which are less highly poled. Possible microstructural origins for this behavior are discussed.

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