Lead-free BNT-based composite materials: enhanced depolarization temperature and electromechanical behavior

The development of (Bi_0.5Na_0.5)TiO₃-based solid solutions with both high depolarization temperature T_d and excellent piezoelectric and electromechanical properties for practical application is intractable because improved thermal stability is usually accompanied by a deterioration in piezoelectric and electromechanical performance.