Preparation and excellent dielectric properties of flexible Ba0.7Sr0.29La0.01TiO3 composite fiber ceramics

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yuping Wang
  • Qing Dong
  • Shuying Shi
  • Xiaoqian Zhang
  • Ze Zhu
  • Zhenfeng Guo
  • Xinqiang Wang
  • Guanghui Zhang
  • Luyi Zhu
  • Dong Xu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)26359-26370
Journal / PublicationJournal of Materials Science: Materials in Electronics
Volume32
Issue number22
Online published8 Oct 2021
Publication statusPublished - Nov 2021

Abstract

Ba0.7Sr0.29La0.01TiO3 (BSLT) fibers with good crystallinity were prepared by the electrospinning method, and the flexible BSLT/PVDF composite membranes were prepared by a simple papermaking process. The fiber exhibited good fiber morphology after being heat-treated to 900 °C. The composite membrane showed strong tensile strength and excellent dielectric properties. The tensile strength of the 20% PVDF composite membrane was 2.66 times that of pure BSLT membrane. Fiber membrane after compounding with PVDF maintained high dielectric constant εr with a small dielectric loss tanδ. It has good frequency stability in the range of 100 Hz to 100 kHz. The dielectric constant of 20% PVDF composite fiber membrane could still reach 49.5 (f = 1000 Hz). The dielectric constant and dielectric loss maintained good stability in the range of 40 to 160 °C. The dielectric constant and dielectric loss of the prepared fiber membrane possessed more stable temperature stability and frequency stability than those of barium titanate-based/organic polymer membranes prepared by other methods.

Citation Format(s)

Preparation and excellent dielectric properties of flexible Ba0.7Sr0.29La0.01TiO3 composite fiber ceramics. / Wang, Yuping; Dong, Qing; Shi, Shuying et al.
In: Journal of Materials Science: Materials in Electronics, Vol. 32, No. 22, 11.2021, p. 26359-26370.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review