Effect of Li2CO3 addition on structural and electrical properties of 0.7 BiFeO3–0.3BaTiO3 piezoelectric ceramic

Hongbo Liu; Jianguo Chen

doi:10.1142/S2010135X2241003X

Abstract

In this work, Li₂CO₃ was added into 0.7

{BiFeO}_{3^{?}}

0.3

{BaZr}_{0.02}

{Ti}_{0.98}

O_{3^{?}}

0.01molMnO₂ (70BFBTMn) piezoelectric ceramics to reduce their sintering temperatures. 70BFBTMn ceramics were sintered by a conventional solid reaction method, and their structural, dielectric, piezoelectric and ferroelectric properties were studied. These results indicate that 0.5% (mole) Li₂CO₃ is the optimized content and it can reduce the sintering temperature by 100

^{°}

C, making the possibility of the piezoelectric ceramics cofiring with Ag electrodes at low temperatures to manufacture multilayer piezoelectric actuators.In this work, Li₂CO₃ was added into 0.7

{BiFeO}_{3^{?}}

0.3

{BaZr}_{0.02}

{Ti}_{0.98}

O_{3^{?}}

0.01molMnO₂ (70BFBTMn) piezoelectric ceramics to reduce their sintering temperatures. 70BFBTMn ceramics were sintered by a conventional solid reaction method, and their structural, dielectric, piezoelectric and ferroelectric properties were studied. These results indicate that 0.5% (mole) Li₂CO₃ is the optimized content and it can reduce the sintering temperature by 100

^{°}

C, making the possibility of the piezoelectric ceramics cofiring with Ag electrodes at low temperatures to manufacture multilayer piezoelectric actuators.