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Bismuth titanate-based high temperature piezoceramics: Domain structure and polarization dynamics

Research Project

Project/Area Number 22KF0290
Project/Area Number (Other) 21F21704 (2021-2022)
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeMulti-year Fund (2023)
Single-year Grants (2021-2022)
Section外国
Review Section Basic Section 18010:Mechanics of materials and materials-related
Research InstitutionKyushu University

Principal Investigator

陳 強  九州大学, 工学研究院, 教授 (30264451)

Co-Investigator(Kenkyū-buntansha) XIE SHAOXIONG  九州大学, 工学研究院, 外国人特別研究員
Project Period (FY) 2023-03-08 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2023: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2022: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2021: ¥600,000 (Direct Cost: ¥600,000)
KeywordsBismuth titanate / Atomic arrangement / Domain walls / Piezoelectric responses / Spatial model / Bismuth titanite / Atomic observations / Polarization shift / Domain switching
Outline of Research at the Start

Spatial domain structures and electric/mechanical field-induced polarization dynamics are deeply studied in order to unravel domain structures and its structural origin, explore atomic polarization distributions and reconstruct the spatial domain patterns, expound polarization dynamic behaviors and analyze the domain switching mechanism, and build physical model and optimize domain configuration.

Outline of Annual Research Achievements

Bismuth titanate (BIT) ceramics are potential candidates for high-temperature sensing applications. Despite great advances in performance optimization, the research on domain structures and polarization dynamics are still scarce, limiting further development of such advanced functional materials for more emerging applications. Here, our work focuses on the detailed characterization of domain structures at multi-scale and polarization dynamic behaviors under both electrical and mechanical loads. In brief, the morphologies of domain structures were characterized by PFM at micro-scale, and then structural features of ferroelectric domains were analyzed by TEM and HRTEM at micro-scale and nano-scale, respectively. Most importantly, the polarization vectors of ferroelectric domains were directly observed by atomic-resolution HAADF-STEM. To elaborate the polarization dynamics under electric fields, a series of bias voltages were applied on the surface of ceramics by using PFM lithography, revealing the significant evolution behaviors of ferroelectric domains under applied electric fields. Besides, nanoindentation technique was employed to unravel the ferroelectric domain effect on mechanical properties of BIT ceramics, demonstrating that more domain walls have a positive effect on mechanical hardness. Moreover, polarization dynamics under both constant and cyclic mechanical stresses were elucidated based on nonlinear deformation or domain switching including reversible domain switching and irreversible domain switching in stress-strain curves of ceramics.

Report

(3 results)
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (7 results)

All 2024 2023 2022 Other

All Int'l Joint Research (3 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results)

  • [Int'l Joint Research] Chendu University/Sichuan University(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Friedrich-Alexander University(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Sichuan University(中国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Realizing Super‐High Piezoelectricity and Excellent Fatigue Resistance in Domain‐Engineered Bismuth Titanate Ferroelectrics2024

    • Author(s)
      Xie Shaoxiong、Xu Qian、Chen Qiang、Zhu Jianguo、Wang Qingyuan
    • Journal Title

      Advanced Functional Materials

      Volume: 34 Issue: 18

    • DOI

      10.1002/adfm.202312645

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Significantly enhanced performance and conductivity mechanism in Nb/Mn co-doped CaBi4Ti4O15 ferroelectrics2024

    • Author(s)
      Xu Jiageng、Xie Shaoxiong、Xu Qian、Xing Jie、Wang Qingyuan、Zhu Jianguo
    • Journal Title

      Journal of Materiomics

      Volume: 10 Issue: 3 Pages: 652-669

    • DOI

      10.1016/j.jmat.2023.09.003

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tailoring hardness behaviors of BIT-based piezoceramics via doping and annealing strategies2023

    • Author(s)
      Xu Qian、Xie Shaoxiong、Li Lang、Xing Jie、Chen Qiang、Zhu Jianguo、Wang Qingyuan
    • Journal Title

      Journal of the European Ceramic Society

      Volume: 43 Issue: 3 Pages: 916-927

    • DOI

      10.1016/j.jeurceramsoc.2022.11.011

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In-depth understanding of {110}-type domain walls in bismuth titanate ceramics2022

    • Author(s)
      Xie Shaoxiong、Shi Jikai、Xu Qian、Wang Qingyuan、Zhu Jianguo、Sato Yukio、Chen Qiang
    • Journal Title

      Scripta Materialia

      Volume: 217 Pages: 114793-114793

    • DOI

      10.1016/j.scriptamat.2022.114793

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research

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Published: 2022-02-08   Modified: 2024-12-25  

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