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2013 Fiscal Year Final Research Report

High-pressure (GPa) impedance measurements based on an indentation-induced local stress field and development of a new glass electrolyte

Research Project

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Project/Area Number 23686095
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Inorganic materials/Physical properties
Research InstitutionNagoya Institute of Technology (2013)
University of Hyogo (2011-2012)

Principal Investigator

DAIKO Yusuke  名古屋工業大学, 工学(系)研究科(研究院), 助教 (70514404)

Project Period (FY) 2011-04-01 – 2014-03-31
Keywords圧子圧入法 / 高圧インピーダンス / アンビルセル / 活性化体積 / 燃料電池 / ガラス
Research Abstract

Electrical measurements of conducting and dielectric materials under high pressures (in the order of GPa) reveal important information regarding orbital overlaps, electronic states, changes in transition temperatures, and activation volumes. In this study, we demonstrate a new method for high-pressure impedance measurements, up to ~4 GPa, utilizing an indentation-induced local stress field. The current system does not require any pressure mediums or pressure calibrations. The deltaV for O2- ion conduction in 10 mol% Y2O3-doped zirconia at 500oC was estimated to be 3.0 cm3 mol-1. deltaV increased with increasing temperatures from 500 to 600oC. The technique also allows the concurrent determination of the effective elastic modulus by fitting the experimental data obtained from the indentation load-depth profile curves with the Hertzian elastic model. The experimental values were consistent with the theoretical values.

  • Research Products

    (6 results)

All 2014 2013 2012

All Journal Article (3 results) Presentation (3 results)

  • [Journal Article] High-pressure (GPa) impedance measurements based on an indentation-induced local stress field2014

    • Author(s)
      Y. Daiko, E. Takahashi, N. Hakiri, H. Muto, A. Matsuda, T. Rouxel, J.-C. Sangleboeuf, A. Mineshige, T. Yazawa
    • Journal Title

      Solid State Ionics

      Volume: 254 Pages: 6-10

  • [Journal Article] Proton condution in glasses prepared via sol-gel and melting techniques2013

    • Author(s)
      Y. Daiko, J. Ceram
    • Journal Title

      Soc. Jpn

      Volume: 121 Pages: 539-543

  • [Journal Article] The state of P=O_<nb> non-bridging oxygen and proton incorporation in binary MO·P_2O_5 (M=Ca, Mg) phosphate glasses2013

    • Author(s)
      Y. Takamatsu, Y. Daiko, S. Kohara, K. Suzuya, A. Mineshige, T. Yazawa
    • Journal Title

      Solid State Ionics

      Volume: 245-246 Pages: 19-23

  • [Presentation] インデンテーション法によるGPa級高圧インピーダンス測定2013

    • Organizer
      日本セラミックス協会2013年年会
    • Place of Presentation
      東京工業大学
    • Year and Date
      20130317-0319
  • [Presentation] The activation volume of Yttria-stabilized zirconia estimated utilizing indentation-induced local stress field2013

    • Organizer
      ISETS'13
    • Place of Presentation
      名古屋大学
    • Year and Date
      2013-12-14
  • [Presentation] 圧子圧入時の局所高圧場を利用した新規インピーダンス測定法の検討2012

    • Organizer
      第53回ガラスおよびフォトニクス材料討論会
    • Place of Presentation
      北海道大学
    • Year and Date
      20121025-1026

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Published: 2015-07-16  

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