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A comparative study was carried out on the frequency-dependent behavior of electromechanical losses and dispersion effects in dense and porous ferroelectrically hard piezoceramics based on lead zirconate titanate. The study revealed electromechanical dispersion regions characterized by anomalies in the frequency dependence of the complex electromechanical coupling coefficient in the porous piezoceramics.
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Швецов et al. (2026) studied this question.
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