Simultaneous Monitoring of the Electromechanical Coupling Coefficients and Domain Structural Changes of the PMN–32%PT Crystals during Poling Process

Abstract

The discovery of high piezoelectric properties for lead magnesium niobate–lead titanate (PMN–32%PT) enables to develop ultrasonic transducers with significantly improved performance. The domain engineering technologies could be improved by employing techniques enabling continuous monitoring of the piezoelectric properties during poling process of the single crystals at different times.

• Keywords PMN–32%PT crystals; piezoelectric properties of electromechanical coupling coefficients; monitoring of the domain structure; polarization

Funding

The research leading to these results has received funding from Lithuanian-Swiss cooperation programme to reduce economic and social disparities within the enlarged European Union under project agreement No. CH-3-ŠMM-01/02.