Publication detail

Fine-grained BNT-based lead-free composite ceramics with high energy-storage density

Ma, W. Fan, P. Salamon, D. Kongparakul, S. Samart, C. Zhang, T. Zhang, G. Jiang, S. Chang, J.-J. Zhang, H.

Original Title

Fine-grained BNT-based lead-free composite ceramics with high energy-storage density

Type

journal article in Web of Science

Language

English

Original Abstract

The low breakdown strength of BNT-based dielectric ceramics limits the increase in energy-storage density. In this study, we successfully reduced the sintering temperature of BNT-ST-5AN relaxor ferroelectric ceramics from 1150 to 980 °C by two-phase compounding with nano-SiO2. Meanwhile, the average grain size of the composite ceramics is also greatly reduced from 4.45 μm to 0.37 μm. Thus, a large recoverable energy-storage density (3.22 J/cm3) is achieved under the ultrahigh breakdown strength (316 kV/cm). Moreover, good temperature (25–150 °C) and frequency (10–200 Hz) stabilities are simultaneously achieved. The excellent energy-storage properties suggest that BNT-ST-based ceramics composited with SiO2 form a promising low-temperature sintered dielectric material for pulsed power multilayer ceramic capacitors.

Keywords

Energy storage; grain size; low-temperatgure sintering, temperature stability, breakdown strenght

Authors

Ma, W.; Fan, P.; Salamon, D.; Kongparakul, S.; Samart, C.; Zhang, T.; Zhang, G.; Jiang, S.; Chang, J.-J.; Zhang, H.

Released

16. 11. 2019

ISBN

1873-3956

Periodical

CERAMICS INTERNATIONAL

Year of study

44

Number

9

State

United Kingdom of Great Britain and Northern Ireland

Pages from

24392

Pages to

24397

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S0272884219317468

BibTex

@article{BUT159574,
  author="Ma, W. and Fan, P. and Salamon, D. and Kongparakul, S. and Samart, C. and Zhang, T. and Zhang, G. and Jiang, S. and Chang, J.-J. and Zhang, H.",
  title="Fine-grained BNT-based lead-free composite ceramics with high energy-storage density",
  journal="CERAMICS INTERNATIONAL",
  year="2019",
  volume="44",
  number="9",
  pages="24392--24397",
  doi="10.1016/j.ceramint.2019.06.245",
  issn="1873-3956",
  url="https://www.sciencedirect.com/science/article/pii/S0272884219317468"
}