BiFeO3 Ceramics: Processing, Electrical, and Electromechanical Properties

By T. Rojac, A. Benčan, B. Malič, Goknur Tutuncu, Jacob L. Jones, J. Daniels, Dragan Damjanovic. 2014

446 citations recorded by the source corpus.

Bismuth ferrite (BiFeO3), a perovskite material, rich in properties and with wide functionality, has had a marked impact on the field of multiferroics, as evidenced by the hundreds of articles published annually over the past 10 years. Studies from the very early stages and particularly those on polycrystalline BiFeO3 ceramics have been faced with difficulties in the preparation of the perovskite free of secondary phases. In this review, we begin by summarizing the major processing issues and clarifying the thermodynamic and kinetic origins of the formation and stabilization of the frequently observed secondary, nonperovskite phases, such as Bi25FeO39 and Bi2Fe4O9. The second part then focuses on the electrical and electromechanical properties of BiFeO3, including the electrical conductivity, dielectric permittivity, high-field polarization, and strain response, as well as the weak-field piezoelectric properties. We attempt to establish a link between these properties and address, in particular, the macroscopic response of the ceramics under an external field in terms of the dynamic interaction between the pinning centers (e.g., charged defects) and the ferroelectric/ferroelastic domain walls.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/4dd018e1e8d5210f166fadbe28c913b172cd5de7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electronic, Optical and Magnetic Materials

1. Ke Wang
2. K. Webber
3. J. Rödel
4. W. Jo
5. Jiagang Wu
6. Jingfeng Li

In Materials Chemistry

1. Ke Wang
2. K. Webber
3. J. Rödel
4. A. Bell
5. Jingfeng Li
6. Jiagang Wu
7. W. Jo
8. D. Xiao

Citations in the corpus

• Requirements for the transfer of lead-free piezoceramics into application (2018, background): “At temperatures above 250e300 C, where PZT depolarizes, BiFeO3ebased ceramics still maintain considerable piezoelectricity, whilst presenting challenges in terms of processing of single phase material [6].”