Effect of Li0.12Na0.88NbO3 content on the electrical properties of Bi0.50Na0.50TiO3 lead-free piezoelectric ceramics

► The relaxor behavior enhances with increasing LNN content. ► The Td value decreases with increasing LNN content. ► The largest ɛm and the lowest tan δ for the ceramic with x = 0.02. ► d33 ∼ 113 pC/N and kp ∼ 21.6% for the ceramic with x = 0.02.