Enhanced piezoelectric properties and electric thermal stability of high temperature BiFeO 3 -PbTiO 3 -BaTiO 3 piezoelectric ceramics with Bi 2 O 3 excess

BiFeO3-PbTiO3-BaTiO3 ceramics are one of promising candidates for high temperature piezoelectric applications. High piezoelectric properties are important factors for real device applications. In this paper, 0.62BiFeO3-0.23PbTiO3-0.15BaTiO3-1 mol%MnO2+x mol%Bi2O3 (x = 0, 1, 3 and 5) (BF-PT-BT) ceramics near the morphotropic phase boundary (MPB) compositions with both rhombohedral (R) and tetragona...