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Shock-wave compression on MgSiO3 material to elucidate the formation process of cometary nuclei

Research Project

Project/Area Number 17K14415
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Petrology/Mineralogy/Economic geology
Research InstitutionTokai University (2022)
Kanazawa University (2017-2021)

Principal Investigator

Arasuna Akane  東海大学, マイクロ・ナノ研究開発センター, 特任講師 (40794681)

Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords星間塵 / 彗星核 / シリケイト / 非晶質 / MgSiO3ガラス / 衝撃圧縮 / 含水物質 / MgSiO3 / 衝撃圧縮実験 / 水分子 / 隕石 / ゾルーゲル法 / 鉱物学 / 彗星塵 / 水 / 衝撃波 / シリカ / OH基 / 地球惑星物質 / 鉱物・結晶学
Outline of Final Research Achievements

Hydrous amorphous MgSiO3 and non-hydrous amorphous MgSiO3 were synthesized as model materials for silicate in interstellar dust. Analysis of model materials recovered from shock compression and thermal experiments has provided new insights into the structural changes of silicates in interstellar dust in space.
IR spectrum and XRD patterns of hydrous amorphous MgSiO3 sample compressed at 13.6 GPa indicated that this material crystallized into enstatite.On the other hand, IR and Raman spectra of compacted amorphous MgSiO3 showed that the sample retained its amorphous structure after compression at 22 GPa. These results indicated that H2O and OH groups may contribute to the crystallization of amorphous MgSiO3 under impact compression.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、衝突現象を含め宇宙空間のさまざまなイベントによる地球外物質中のシリケイトの構造変化の解明に寄与できるほか、MgSiO3は地球にも豊富に存在する物質であることからこれら物質の熱・圧力による構造変化の解明にも貢献可能である。
また、本研究で成功したゾルーゲル法やガラス合成技術による含水/非含水の非晶質MgSiO3の合成は、地球惑星科学にとどまらず材料科学等他分野にも貢献可能な技術である。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (16 results)

All 2022 2020 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (14 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Structural change of the frustule of diatom by thermal treatment2018

    • Author(s)
      Arasuna Akane、Okuno Masayuki
    • Journal Title

      Geoscience Letters

      Volume: 5 Issue: 1 Pages: 1-7

    • DOI

      10.1186/s40562-018-0101-3

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structural Characterization of the Body Frame and Spicules of a Glass Sponge2018

    • Author(s)
      Arasuna Akane、Kigawa Masahito、Fujii Shunsuke、Endo Takatsugu、Takahashi Kenji、Okuno Masayuki
    • Journal Title

      Minerals

      Volume: 8 Issue: 3 Pages: 1-15

    • DOI

      10.3390/min8030088

    • NAID

      120006531323

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 衝撃圧縮によるMgSiO3ガラスの構造変化2022

    • Author(s)
      荒砂茜、川合伸明、奥野正幸
    • Organizer
      2022年度衝撃波シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] MgSiO3 ガラスの衝撃圧縮による構造変化2020

    • Author(s)
      荒砂 茜、奥野 正幸、川合 伸明
    • Organizer
      日本鉱物科学会2020年年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Crystallization of amorphous MgSiO3 by shock compression2019

    • Author(s)
      A. Arasuna, N. Kawai, M. Okuno
    • Organizer
      JpGU meeting 2019
    • Related Report
      2019 Research-status Report
  • [Presentation] Shock and thermal behavior of synthesized amorphous MgSiO3 as a model material for cosmic dust2019

    • Author(s)
      A. Arasuna, N. Kawai, M. Okuno
    • Organizer
      AOGS 16th Annual meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] The elucidation of shock behavior of amorphous MgSiO32019

    • Author(s)
      Akane Arasuna, Masayuki Okuno, Nobuaki Kawai
    • Organizer
      JpGU Meeting 2019
    • Related Report
      2018 Research-status Report
  • [Presentation] Shock and thermal behavior of synthesized amorphous MgSiO32019

    • Author(s)
      Akane Arasuna, Masayuki Okuno, Nobuaki Kawai
    • Organizer
      16th Annual Meeting of Asia Oceania Geoscience Society
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 星間塵モデル物質としての非晶質MgSiO3の衝撃圧縮実験2018

    • Author(s)
      荒砂茜,奥野正幸
    • Organizer
      第21回日本セラミックス協会北陸支部秋季研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] 含水非晶質MgSiO3の衝撃圧縮挙動 -彗星核と星間塵の衝突挙動への提案のために-2018

    • Author(s)
      荒砂 茜、奥野 正幸
    • Organizer
      JAXA宇宙科学に関する室内実験シンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 離溶ラメラを含むアノーソクレースの衝撃圧縮挙動2018

    • Author(s)
      安藤 匠吾、奥野 正幸、荒砂 茜、福島 義博、川合 伸明
    • Organizer
      平成29年度衝撃波シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] ガラス海綿骨格の衝撃圧縮による構造変化2018

    • Author(s)
      福島 義博、奥野 正幸、荒砂 茜、安藤 匠吾、川合 伸明
    • Organizer
      平成29年度衝撃波シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Mg添加シリカゲルの衝撃圧縮挙動の解明2017

    • Author(s)
      荒砂 茜、奥野 正幸、阿藤 敏行、真下 茂
    • Organizer
      第58回高圧討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] Structural change of frustule of diatom by thermal treatment2017

    • Author(s)
      Akane Arasuna
    • Organizer
      14th Asia Oceania Geosciences Society Annnual Meating
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 加熱による珪藻被殻の構造変化2017

    • Author(s)
      荒砂 茜、 奥野 正幸
    • Organizer
      第20回日本セラミックス北陸支部秋季研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] ガラス海綿のナノスケール構造の圧縮挙動2017

    • Author(s)
      福島 義博、奥野 正幸、荒砂 茜、水上 知行、伊藤 暢晃
    • Organizer
      第20回日本セラミックス北陸支部秋季研究発表会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2024-01-30  

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