Influence of Polarization Temperature and Time on the Electromechanical Performance of Commercial PZT-4 Ceramics. - Oliveira BKDS; Silva DS; Junio RFP; Rodrigues JGP; Marçal RLSB; Monteiro SN; Amaral PST; Lima RDC; de Assis FS (Materials (Basel, Switzerland), 2026)