Effect of Co3+ on structure and electrical properties of Na0.5Bi2.5Nb2O9 ceramics

Multiscale Structural Engineering Boosts Piezoelectricity in Na0.5Bi2.5Nb2O9-Based High-Temperature Piezoceramics

“…It is desirable but still challenging to integrate these two properties in one compound. It is noted that unitary ion doped NBN ceramics have slightly weaker integrated performance, where the d 33 is between 22 and 26 pC/N and the T C is between 640 and 660 °C, − and binary doped NBN ceramics exhibit slightly stronger integrated performance. ,− Encouragingly, the NBN-LCN materials developed in the present work are gifted with the highest piezoelectric constant while maintaining a high Curie temperature. For practical implements, the stability of piezoelectricity against temperature variation and mechanical pressure is of critical importance.…”