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Development of new-type metallic glasses by using multi-step liquid phase separation

Research Project

Project/Area Number 23760667
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Structural/Functional materials
Research InstitutionOsaka University

Principal Investigator

NAGASE Takeshi  大阪大学, 超高圧電子顕微鏡センター, 講師 (50362661)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsアモルファス材料 / 金属ガラス / 液体分離 / ワイヤー / ファイバー / アモルファス / 液体急冷 / 電子顕微鏡 / 材料組織
Research Abstract

A dual-layer ribbon of Co-Si-B-Cu alloy was prepared by the single-roller melt-spinning method. The substrate surface comprised Co-Si-B-based amorphous phase with Cu crystalline nanoscale globules, while the free surface showed a thin crystalline Cu layer . A macroscopically separated unique structure was obtained by the simultaneous occurrence of liquid phase separation of the Co-Cu-based alloy system and amorphous phase formation in the Co-Si-B alloy layer. Rapidly-solidified wire with macroscopically separated structure was formed in Fe-Si-B-Cu alloy by Arc-melt-type melt-extraction method. Unique core-wire / surface-cover-layer structure composed with core Fe-Si-B amorphous based alloy and cover Cu crystal was formed through liquid phase separation during rapid quenching of thermal melt.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (4 results)

All 2012 2011

All Presentation (4 results)

  • [Presentation] 液体分離現象を用いた新材料開発2012

    • Author(s)
      永瀬丈嗣, 馬越佑吉
    • Organizer
      平成 24 年度鋳造工学会関西支部大会
    • Place of Presentation
      大阪
    • Year and Date
      2012-11-13
    • Related Report
      2012 Final Research Report
  • [Presentation] 液体分離現象を利用した新材料開発2012

    • Author(s)
      永瀬丈嗣、馬越佑吉
    • Organizer
      日本鋳造工学会関西支部平成24年度秋季支部講演大会
    • Place of Presentation
      関西大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] Formation of melt-extracted wire with core-wire/surface-cover-layer structure by arc-melt-type melt-extraction method2011

    • Author(s)
      T. Nagase and Y. Umakoshi
    • Organizer
      International Conference on Precessing & Manufacturing of Advanced Materials 2011, Thermec 2011
    • Place of Presentation
      Quebec
    • Year and Date
      2011-08-04
    • Related Report
      2012 Final Research Report
  • [Presentation] Formation of melt-extracted wire with core-wire/surface-cover-layer structure by arc-melt-type melt-extraction method2011

    • Author(s)
      Takeshi Nagase
    • Organizer
      International Conference on Precessing & Manufacturing of Advanced Materials 2011 (Thermec 2011)(招待講演)
    • Place of Presentation
      QuebecConvention Centre, Quebec, Canada
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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