Annealed KNN Piezoceramics

High d33 and Qm Simultaneously

Annealing induces redistribution of manganese defects and oxygen vacancies, simultaneously enhancing the piezoelectric coefficient and mechanical quality factor to rival commercial PZT-5A.

Guan, Yiming · Sun, Yiyang · Wang, Jie · Huangfu, Geng · Li, Hua · Zhang, Shujun · Guo, Yiping

ACS Applied Materials & Interfaces 2023

Advantages

d33 increased by 20%

Qm increased by 80%

Performance comparable to commercial PZT-5A

Applicable in atomizer components