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Optimization of poling condition for porous piezoelectric material made by sol-gel composite technique

Research Project

Project/Area Number 19K04493
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionKumamoto University

Principal Investigator

Kobayashi Makiko  熊本大学, 大学院先端科学研究部(工), 教授 (90629651)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords分極 / ゾルゲル複合体 / 圧電材料 / 超音波センサ / コロナ放電 / d33 / 温度 / 湿度 / 脱分極 / 多孔性圧電材料
Outline of Research at the Start

スマート工場内におけるリアルタイムモニタリング応用を最終目標とした、ゾルゲル複合体法により作製された多孔性圧電材料の分極条件最適化に関する研究を行います。ゾルゲル複合体法により作製されたセンサは、薄膜形状でロバストであり、かつ曲面に適合可能なことから、工業界での実用化が期待されており、作製を自動化したことにより、膜質の均質化は達成されましたが、特性にばらつきがあることが課題でした。そこで分極時の出力電圧、分極雰囲気、帯電電位と圧電定数d33の相関性を調査することにより、デバイス実用化に向けて必要不可欠である、品質保証を可能とすることを目標としています。

Outline of Final Research Achievements

SPoling optimization of sol-gel composites had been investigated for real-time monitoring of smart industry. Sensors fabricated by the sol-gel composite method are expected to be applied for the real industrial, however, the sensor performance deviation was the problem. Poling process to acquire piezoelectric properties was the suspected reason.
First, sol-gel phase materials that can assist efficient sol-gel composite poling had been developed. As a result, it was found that the poling temperatures decreased by titanium oxide sol-gel phase. Next, by poling in a nitrogen atmosphere, the piezoelectric and ultrasonic properties were stabilized at acceptable values, and the goal of within 10% of the d33 center value was achieved.

Academic Significance and Societal Importance of the Research Achievements

ゾルゲル相の材料は、従来使用されていた誘電率が高い材料だけではなく、抵抗率が高い材料も、粉体材料によっては適合可能であることが判明しました。これにより、分極が非常に困難であったニオブ酸リチウムも200℃という比較的低温で分極が可能となりました。また、高湿度の空気、窒素雰囲気、乾燥空気雰囲気の条件で分極を行うと、高湿度の場合は空孔に水が置換されるため、電界が印加されないこと、オゾンの発生が抑制できる窒素雰囲気が最適であることも判明しました。品質保証が可能な、どこにでも取り付けが可能な高温超音波/圧電センサはスマート工場におけるリアルタイムモニタリング応用が期待されます。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (10 results)

All 2022 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (7 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] 直流コロナ放電による多孔性圧電膜分極時における雰囲気条件の影響2022

    • Author(s)
      日高 蒔恵、中妻 啓、小林 牧子
    • Journal Title

      Journal of The Institute of Electrostatics Japan

      Volume: 46 Issue: 1 Pages: 33-37

    • DOI

      10.34342/iesj.2022.46.1.33

    • ISSN
      0386-2550
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LiNbO3-based sol-gel composite ultrasonic transducer poled at low temperatures2022

    • Author(s)
      Kambayashi Naoki、Zaito Naoki、Akatsuka Hiroaki、Kobayashi Makiko
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: - Issue: SG Pages: SG1060-SG1060

    • DOI

      10.35848/1347-4065/ac5720

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polarity effect of corona discharge poling for sol-gel composite-based ultrasonic transducers2020

    • Author(s)
      Hara Takumi、Furukawa Minori、Nozawa Shohei、Nakatsuma Kei、Kobayashi Makiko
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: SK Pages: SKKC10-SKKC10

    • DOI

      10.35848/1347-4065/ab87f1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Ambience effect during poling of Pb(Zr,Ti)O3/Pb(Zr,Ti)O32021

    • Author(s)
      A. Yamasaki, M. Hidaka, K. Nakatsuma, M. Kobayashi
    • Organizer
      42th Symposium on UltraSonic Electronics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sol-gel composite film measurement by scanning nonlinear dielectric microscopy2021

    • Author(s)
      K. Hirakawa, N. Kamnayashi, H. Odagawa, M. Kobayashi
    • Organizer
      42th Symposium on UltraSonic Electronics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Polarization and High Temperature Characteristics of Bi4Ti3O12/Al2O3 Sol-Gel Composite Ultrasonic Transducer2020

    • Author(s)
      Hiroaki Akatsuka, Kei Nakatsuma, Makiko Kobayashi, Daichi Maeda and Takumi Hara
    • Organizer
      Proc. of 41th Symposium on UltraSonic Electronics
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Corona discharge polarity influence on Pb(Zr,Ti)O3/TiO22020

    • Author(s)
      Takumi Hara, Makie Hidaka, Hiroaki Akatsuka, Kei Nakatsuma and Makiko Kobayashi
    • Organizer
      Proc. of 41th Symposium on UltraSonic Electronics
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Poling of Bi4Ti3O12/Pb(Zr,Ti)O3 by negative corona discharge2019

    • Author(s)
      Takumi Hara, Shohei Nozawa, Kei Nakatsuma, Makiko Kobayashi
    • Organizer
      The 40th Sympoium on UltraSonic Electronics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Poling of Pb(Zr,Ti)O3/Pb(Zr,Ti)O3 by negative corona discharge2019

    • Author(s)
      Minori Furukawa, Shohei Nozawa, Takumi Hara, Kei Nakatsuma, Makiko Kobayashi
    • Organizer
      The 40th Sympoium on UltraSonic Electronics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Pb(Zr, Ti)O3/Pb(Zr, Ti)O3 Poling by pulse voltage2019

    • Author(s)
      Makie Hidaka, Minori Furukawa, Makiko Kobayashi
    • Organizer
      The 40th Sympoium on UltraSonic Electronics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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