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Development of a new levitated melting system that simulates the primitive solar system

Research Project

Project/Area Number 18H01268
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 17010:Space and planetary sciences-related
Research InstitutionKobe University

Principal Investigator

Seto Yusuke  神戸大学, 理学研究科, 講師 (10399818)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Keywordsコンドリュール / 浮遊加熱法 / ガス浮遊法 / 浮遊溶融 / 再現実験 / 浮遊溶融法
Outline of Final Research Achievements

Chondrules are the oldest material in the solar system, having formed 4.56 billion years ago. In this study, a new levitation heating system was developed to constrain the formation environment of chondrules through reproducible experiments. In this system, a gas levitation nozzle is introduced inside a tube furnace and further irradiated with a near-infrared laser to levitate and melt objects at temperatures exceeding 2000°C while maintaining a reductive atmosphere. Using this system, levitated melting experiments were conducted on various rocks and chondrule-simulating materials, and the system successfully reproduced the naturally occurring chondrule structure.

Academic Significance and Societal Importance of the Research Achievements

コンドリュールとは、原始惑星系円盤において、微粒子の集合体が瞬間的な加熱によって溶融し、その後急冷してできた球状物質である。本研究では、コンドリュールの形成環境(非接触・超高温・還元的状態)を模擬するために、雰囲気制御管状炉・レーザー加熱装置・ガス浮遊法を組み合わせたハイブリッド浮遊加熱装置を開発した。この装置を用いて様々な出発物質の浮遊溶融実験を実施し、実験生成物を実際の隕石中のコンドリュール組織と比較を行うことで、原始惑星系円盤におけるコンドリュール形成条件の制約が可能となった。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019 2018 Other

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results) Presentation (9 results) (of which Int'l Joint Research: 3 results) Remarks (3 results)

  • [Journal Article] <i>ReciPro</i>: free and open-source multipurpose crystallographic software integrating a crystal model database and viewer, diffraction and microscopy simulators, and diffraction data analysis tools2022

    • Author(s)
      Seto Yusuke、Ohtsuka Masahiro
    • Journal Title

      Journal of Applied Crystallography

      Volume: 55 Issue: 2 Pages: 397-410

    • DOI

      10.1107/s1600576722000139

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crystallographic preferred orientation of talc determined by an improved EBSD procedure for sheet silicates: Implications for anisotropy at the slab-mantle interface due to Si-metasomatism2020

    • Author(s)
      Takayoshi Nagaya, Atsushi Okamoto, Ryosuke Oyanagi, Yusuke Seto, Akira Miyake, Masaoki Uno, Jun Muto, Simon R. Wallis
    • Journal Title

      American Mineralogist

      Volume: in press Issue: 6 Pages: 873-893

    • DOI

      10.2138/am-2020-7006

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Proximity coupling of superconducting nanograins with fractal distributions2020

    • Author(s)
      Uchino Takashi、Teramachi Nanami、Matsuzaki Ryosuke、Tsushima Emi、Fujii Shusuke、Seto Yusuke、Takahashi Kazuyuki、Mori Takao、Adachi Yutaka、Nagashima Yukihito、Sakaguchi Yoshifumi、Ohishi Kazuki、Koda Akihiro、Sakurai Takahiro、Ohta Hitoshi
    • Journal Title

      Physical Review B

      Volume: 101 Issue: 3 Pages: 035146-035146

    • DOI

      10.1103/physrevb.101.035146

    • NAID

      120006786973

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Collisional disruption of highly porous targets in the strength regime: Effects of mixture2020

    • Author(s)
      Murakami, Y., Nakamura, A.M., Yokoyama, K., Seto, Y., Hasegawa, S.
    • Journal Title

      Planetary and Space Science

      Volume: 182 Pages: 104819-104819

    • DOI

      10.1016/j.pss.2019.104819

    • NAID

      120006824037

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 衝撃圧縮下における多結晶体試料の格子歪み解析2021

    • Author(s)
      瀬戸雄介
    • Organizer
      第62回高圧討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 5つのCMコンドライト中のTCIの微細組織観察とCMコンドライト母天体の水質環境の推定2020

    • Author(s)
      家本 あかね, 瀬戸 雄介, 三宅 亮
    • Organizer
      JpGU-AGU Joint meeting 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] 水質変質程度の異なるCMコンドライト中TCIの微細組織観察2019

    • Author(s)
      家本あかね, 瀬戸雄介, 三宅亮
    • Organizer
      2019年鉱物科学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Petrographic study of a compact type A CAI with partial melting process2019

    • Author(s)
      Suzumura A, Seto Y, Itoh S.
    • Organizer
      The 82nd Annual Meeting of the Meteoritical Society
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 動力学的回折理論に基づく電子回折シミュレーションと鉱物への応用2019

    • Author(s)
      瀬戸雄介, 大塚 真弘, 三宅亮
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Hydrothermal experiments of anorthite with implications for Na-metasomatism on carbonaceous chondrite parent body2018

    • Author(s)
      Yusuke Seto, Shiori Adachi, Kazushige Tomeoka
    • Organizer
      The Ninth Symposium on Polar Science
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Petrographic study of a compact type A CAIs with partial melting process2018

    • Author(s)
      Akimasa Suzumura, Yusuke Seto, Shoichi Itoh
    • Organizer
      The Ninth Symposium on Polar Science
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] コンドライト母天体を模擬したアノーサイト水質変質実験2018

    • Author(s)
      瀬戸 雄介, 足立 栞, 市村 隼
    • Organizer
      日本鉱物科学会2018年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] CMコンドライト中のtype-Ⅱ TCIの微細組織観察2018

    • Author(s)
      家本 あかね, 瀬戸 雄介, 三宅 亮
    • Organizer
      日本鉱物科学会2018年会
    • Related Report
      2018 Annual Research Report
  • [Remarks] Seto's Page

    • URL

      https://yseto.net/

    • Related Report
      2021 Annual Research Report
  • [Remarks] Seto's home page

    • URL

      http://pmsl.planet.sci.kobe-u.ac.jp/~seto/

    • Related Report
      2020 Annual Research Report
  • [Remarks] Seto's Home Page

    • URL

      http://pmsl.planet.sci.kobe-u.ac.jp/~seto/

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report

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Published: 2018-04-23   Modified: 2023-01-30  

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