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The microstructural features and complex parameters of ferroelectrically hard porous piezoceramics based on lead zirconate titanate were investigated. Elastic dispersion regions characterized by anomalies in the frequency dependences of the complex modulus of elasticity, speed of sound, and attenuation of elastic waves were identified. It was established that the dispersion of elastic properties in the porous piezoceramics is determined by the presence of a quasi-rod structure of the ceramic framework.
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Rybyanets et al. (2026) studied this question.
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