fig12
Figure 12. Poling-aging-repoing strategy to achieve strong pinning of defect dipoles. (A) Schematic illustration of the repoling process. (B) Impedance spectra of KNNLT-2Cu ceramics measured at different temperatures. (C) Calculated d33, Qm, and FOM at different temperatures. (D) Electrostrain behavior of KNNLT-2Cu after the repoling process, measured from 30 to 240 °C. This figure quoted with permission[37]. Copyright 2024, Elsevier Ltd.
