J. A. Cortés, J. Camargo, M. F. Rachia, F. Rubio-Marcos, L. Ramajo, M. Castro, M. A. Ramírez. Influence of the sintering temperature on ferroelectric properties of potassium-sodium niobate piezoelectric ceramics[J]. Journal of Advanced Dielectrics, 2021, 11(3): 2140002