Publication detail

High energy storage efficiency of NBT-SBT lead-free ferroelectric ceramics

Zhou, XY. Liu, K. Yan, ZL. Xie, B. Fan, PY. Chen, SG. Samart, C. Salamon, D. Tan, H. Fan, ZM. Zhang, HB.

Original Title

High energy storage efficiency of NBT-SBT lead-free ferroelectric ceramics

Type

journal article in Web of Science

Language

English

Original Abstract

Ceramic-based dielectrics have been widely used in pulsed power capacitors owing to their good mechanical and thermal properties. Bi0.5Na0.5TiO3-based (NBT-based) solid solutions exhibit relatively high polarization, which is considered as a promising dielectric energy storage material. However, the high remnant polarization and low energy efficiency limit their application in dielectric capacitors. Herein, a typical relaxor ferroelectric Sr0.7Bi0.2TiO3 (SBT) was introduced into the NBT system to strengthen the overall relaxor behavior, resulting in reduced remnant polarization. We prepared (1-x)NBT-xSBT (x = 0.35, 0.45, 0.55, and 0.65) ceramics by the conventional solid-phase reaction method and further investigated their microstructures, dielectric and energy storage properties. With the increase of SBT content, the size of the grains and the maximum dielectric constant gradually decreased, simultaneously. Furthermore, the dielectric shoulder corresponding to the maximum dielectric constant shifted to a lower temperature, indicating that the enhancement of polarization dynamics was a consequence of the domain refinement. As a result, the optimum property was identified in the 0.45NBT-0.55SBT sample with a high recoverable energy density of 1.34 J/cm(3) and an outstanding energy efficiency of 96% at a low electric field of 100 kV/cm.

Keywords

Lead-free ferroelectric ceramics; Dielectric energy storage property; High energy efficiency; Low electric field

Authors

Zhou, XY.; Liu, K.; Yan, ZL.; Xie, B.; Fan, PY.; Chen, SG.; Samart, C.; Salamon, D.; Tan, H.; Fan, ZM.; Zhang, HB.

Released

15. 8. 2022

Publisher

ELSEVIER SCI LTD

Location

OXFORD

ISBN

1873-3956

Periodical

CERAMICS INTERNATIONAL

Year of study

48

Number

16

State

United Kingdom of Great Britain and Northern Ireland

Pages from

23266

Pages to

23272

Pages count

7

URL

https://www.sciencedirect.com/science/article/pii/S0272884222015139?via%3Dihub

BibTex

@article{BUT179979,
  author="Zhou, XY. and Liu, K. and Yan, ZL. and Xie, B. and Fan, PY. and Chen, SG. and Samart, C. and Salamon, D. and Tan, H. and Fan, ZM. and Zhang, HB.",
  title="High energy storage efficiency of NBT-SBT lead-free ferroelectric ceramics",
  journal="CERAMICS INTERNATIONAL",
  year="2022",
  volume="48",
  number="16",
  pages="23266--23272",
  doi="10.1016/j.ceramint.2022.04.311",
  issn="1873-3956",
  url="https://www.sciencedirect.com/science/article/pii/S0272884222015139?via%3Dihub"
}