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Production of amorphous bulk of nitrides for structural material at ultra-high temperature

Research Project

Project/Area Number 19K22039
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionTohoku University

Principal Investigator

Zhu Hongmin  東北大学, 工学研究科, 教授 (80713271)

Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords超高温用材料 / シリコン / 窒化物 / アモルファス / Si-B-N / Si-B-C-N / ナノサイズ粉末 / 窒化物バルク
Outline of Research at the Start

ガスタービンやジェットエンジンは熱効率改善のため超高温用材料の適用が望まれている。本研究では、SiCl4、BBr3、CCl4などのハロゲン化物を原料として用い、液体アンモニア(NH3)中で金属ナトリウム(Na)で還元窒化させて、超高温材料創成のためのアモルファスSi-B-NあるいはSi-B-C-Nのナノサイズ微粉末を作製する。さらに、緻密なアモルファス窒化物バルクを製造することを目的とする。

Outline of Final Research Achievements

The application of ultra-high temperature materials to gas turbines and jet engines is anticipated for improving thermal efficiency. However, the improvement by metallic materials meets the limitation, and the application of non-metallic materials is investigated. In this study, a synthetic apparatus of nano powders of amorphous Si-B-C-N that has good mechanical properties and high oxidation resistance and is anticipated as ultra-high temperature materials has been developed. Synthetic experiment of nano powders of amorphous Si-B-C-N has been conducted and the product has been stably obtained.

Academic Significance and Societal Importance of the Research Achievements

本研究は超高温用構造材料に関して、従来とは全く異なる材料である窒化物系アモルファス材料を提案し、革新的な製造法によってこれを実用化することを目指した。学術的にもアモルファス生成に低温での強還元法を用いる点、ナノサイズ効果を利用する点、更に有機物前駆体を経ずにアモルファス窒化物を合成する点が独創的である。本材料の高温強度が確認され実用化されれば、熱機関の効率向上によって社会に大きく貢献できると考えられる。

Report

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

    (3 results)

All 2021 2020

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

  • [Journal Article] Facile synthesis of fine Ti-Al intermetallic compound powders via sodiothermic reduction in molten CaCl22021

    • Author(s)
      Chao Du, Jiusan Xiao, Bao Zhang, Hongmin Zhu
    • Journal Title

      Intermetallics

      Volume: 129 Pages: 107038-107038

    • DOI

      10.1016/j.intermet.2020.107038

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of wide-range viscometer and the viscosity measurement for SiO2-Na2O-NaF system2020

    • Author(s)
      Osamu Takeda, Masaya Yamada, Masane Kawasaki, Mayu Yamamoto, So Sakurai, Xin Lu, Hongmin Zhu
    • Journal Title

      ISIJ International

      Volume: 60 Issue: 3 Pages: 590-596

    • DOI

      10.2355/isijinternational.isijint-2019-412

    • NAID

      130007808500

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] 溶融LiF-KF-KCl 中のシリコンイオンの拡散係数測定2020

    • Author(s)
      真壁太一,Xin Lu,竹田修,朱鴻民
    • Organizer
      日本金属学会2020年秋期大会 (167回)
    • Related Report
      2020 Annual Research Report

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Published: 2019-07-04   Modified: 2022-01-27  

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