Innovative Diffusion-Type PPB Interface in KNN Piezoelectric Ceramics
In recent years, inspired by the high piezoelectric response at the MPB interface in lead-containing PZT-based ceramics, researchers have successfully constructed a polycrystalline phase boundary (PPB) in KNN-based ceramics, significantly improving the piezoelectric coefficient of KNN-based piezoelectric ceramics. However, KNN-based ceramics developed using the PPB phase boundary strategy often exhibit instability in the d33 temperature. … Read more