Reduced dielectric loss and improved electric thermal stability of BF–PT–BT ceramics by Mn additions

Lin, Jianyin; Qin, Shoukun; Cui, Binghao; Cheng, Jerry; Chen, Jianguo

doi:10.1007/s10853-023-08277-x

J Mater Sci

2023

DOI: 10.1007/s10853-023-08277-x

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Reduced dielectric loss and improved electric thermal stability of BF–PT–BT ceramics by Mn additions

Jianyin Lin

Shoukun Qin²,

Binghao Cui³

et al.

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2024

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High piezoelectric performance and resistivity through a laminated structure design for BiFeO3–BaTiO3 ceramic

Kang,

Zou,

Zhou

et al. 2024

Journal of Applied Physics

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BiFeO3–BaTiO3 (BF–BT) ceramics with high Curie temperature and excellent piezoelectric coefficient are expected to be applied in high-temperature piezoelectric sensors and actuators. However, its resistivity decreases rapidly with temperature and impedes its further applications. Moreover, normal methods such as doping modification cannot address this issue. In the present work, bismuth layered Bi4Ti2.93(Zn1/3Nb2/3)0.07O12 (BIT) and perovskite 0.36BiScO3-0.64PbTiO3 (BSPT) ceramics were selected as insulating layers and were, respectively, sintered with 0.7BF–0.3BT ceramics to form laminated ceramics. The heterojunction structures effectively prevent carrier migration, and both resistivities of BIT and BSPT laminated ceramics were increased from 106 to 108−9 Ω cm at 300 °C. In addition, piezoelectric properties of the BSPT-type laminated ceramics are much higher than that of BF–BT ceramics, in which the bipolar strain was increased from 0.04% to 0.1% (4 kV/mm), and d33 was increased from 140 to 237 pC/N. Therefore, designing the insulating layer may be an effective method to realize the high-temperature application for BF–BT ceramics.

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High piezoelectric performance and resistivity through a laminated structure design for BiFeO3–BaTiO3 ceramic

Kang,

Zou,

Zhou

et al. 2024

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

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Reduced dielectric loss and improved electric thermal stability of BF–PT–BT ceramics by Mn additions

Cited by 1 publication

References 28 publications

High piezoelectric performance and resistivity through a laminated structure design for BiFeO3–BaTiO3 ceramic

High piezoelectric performance and resistivity through a laminated structure design for BiFeO3–BaTiO3 ceramic

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