Publication detail

Enhanced piezoelectric properties in BF-BT based lead-free ferroelectric ceramics for high-temperature devices

Wu, T.Q. Zhang, W. Liu, F.F. Dou, Z.M. Han, S.Q. Fan, P.Y. Chen, S.G. Samart, C. Salamon, D. Tan, H. Zhang, H.B.

Original Title

Enhanced piezoelectric properties in BF-BT based lead-free ferroelectric ceramics for high-temperature devices

Type

journal article in Web of Science

Language

English

Original Abstract

Due to the high Curie temperature (T-C), BiFeO3-BaTiO3 (BF-BT) ceramics have been broadly investigated in high-temperature piezoelectric devices. The piezoelectric constant is one of the most significant factors in determining the sensitivity and reliability of piezoelectric functional components. However, the poor piezoelectric constant (d(33)) of BF-BT ceramic has prevented the practical application of the material. In this work, we innovatively introduce the 0.93Bi(0.5)Na(0.5)TiO(3)-0.07BaTiO(3) (0.93NBT-0.07BT) component to 0.7BF-0.3BT ceramic, to build a morphotropic phase boundary (MPB) for enhancing d(33). The XRD analysis shows that the (0.7BF-0.3BT)-x(0.93NBT-0.07BT) ceramics are still in the MPB region with R-PC phases coexistence, and exhibits a homogeneous solid solution. Moreover, the introduction of 0.93NBT-0.07BT ceramic suppresses the generation of defects and facilitates grain growth, thus enhancing piezoelectric property. In consequence, an optimum piezoelectricity d(33) = 213 pC/N along with T-c similar to 450 degrees C was obtained in (0.7BF-0.3BT)-0.01(0.93NBT0.07BT). This research provides a new idea for the application of BF-BT ceramics in high-temperature piezoelectric devices.

Keywords

BF-BT; Lead-free piezoelectric ceramic; High Curie temperature; Thermal stability

Authors

Wu, T.Q.; Zhang, W.; Liu, F.F.; Dou, Z.M.; Han, S.Q.; Fan, P.Y.; Chen, S.G.; Samart, C.; Salamon, D.; Tan, H.; Zhang, H.B.

Released

15. 1. 2023

Publisher

ELSEVIER SCI LTD

Location

OXFORD

ISBN

1873-3956

Periodical

CERAMICS INTERNATIONAL

Year of study

49

Number

2

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1820

Pages to

1825

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S0272884222033235?via%3Dihub

BibTex

@article{BUT183412,
  author="Wu, T.Q. and Zhang, W. and Liu, F.F. and Dou, Z.M. and Han, S.Q. and Fan, P.Y. and Chen, S.G. and Samart, C. and Salamon, D. and Tan, H. and Zhang, H.B.",
  title="Enhanced piezoelectric properties in BF-BT based lead-free ferroelectric ceramics for high-temperature devices",
  journal="CERAMICS INTERNATIONAL",
  year="2023",
  volume="49",
  number="2",
  pages="1820--1825",
  doi="10.1016/j.ceramint.2022.09.145",
  issn="1873-3956",
  url="https://www.sciencedirect.com/science/article/pii/S0272884222033235?via%3Dihub"
}