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Figure 4. Diffuse PPT phase transition and texturing engineering to enhance the piezoelectricity and temperature stability. (A and B) In situ temperature XRD of KNN-BNZ-3BKH. (C) Dielectric-temperature curves of different compositions. (D) Schematic diagram of the phase boundary. (E) In situ electric field XRD of KNN-BNZ-3BKH. (F) Schematic diagram of crystal structure transformation with and without an electric field. Temperature dependence of (G) random and (H) textured KNN-BNZ-3BKH ceramics. This figure quoted with permission^[30]. Copyright 2024, Springer Nature.