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Interconnection of Amorphous Alloys by Cleaning and Activating their Surfaces

Research Project

Project/Area Number 09650779
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Material processing/treatments
Research InstitutionTohoku University

Principal Investigator

KAWAMURA Yoshihito  Tohoku Univ., Inst.for Mat.Res., Res.Assoc., 金属材料研究所, 助手 (30250814)

Co-Investigator(Kenkyū-buntansha) MASUMOTO Tsuyoshi  The Res.Inst.Electric and Magnetic Materials, President, 所長 (20005854)
KIKUCHI Michio  Tohoku Univ., Inst.for Mat.Res., Res.Assoc., 金属材料研究所, 助手 (30204837)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
KeywordsAmorphous Alloy / Supercooled Liquid / Metallic Glass / Interconnection / Viscous Flow / Glass Transition / イオンエッチング
Research Abstract

We have at first investigated the viscosity of the supercooled liquid in a Pd_<40>Ni_<40>P_<20> metallic glass, which is fundamental data in experiments of interconnection. It was found that the viscosity of the supercooled liquid can be expressed by the Arrhenius-type equation and was 3X10^<10> Pa s at the glasstransition temperature of 578 K.The metallic glasses that were etched by argon ions at 5kV and 40 mA for 3 hr under a high vacuum of 2x^<1O-9> Torr, were interconnected by heating up to the glass transition temperature under a pressure of 50 MPa. An interconnection between the metallic glasses was achieved with retaining the glassy phase. However, the bonding state was not enough strong to examine the bonding strength. The reason was considered as follows. 1) The cleaned surfaces, which were etched by argon ions, were contaminated again before the interconnection because it took long time to heat the samples. 2) The lamp heater heated the inside of the vacuum chamber and leaded to gas evolution that resulted from release of gas adsorbed on the surface of the vacuum chamber. Accordingly, the cleaned surfaces were contaminated again before the interconnection. 3) The pressure, which was sufficient to achieving the full contact between the surfaces, was not applied on the surfaces, because the loading resulted in the over-all deformation of metallic glasses. In order to resolve the problems described above, we are improving the apparatus as follows. 1) The method of heating is being changed from lamp heater to induction heater to achieve rapid heating and to heat the samples alone. 2) We are producing die sets in which the side of samples is under constraint so that full contact of the surfaces is achieved by loading. We will continue the experiments of interconnection in amorphous alloys.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] "Superplastic Deformation of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Scripta Metall.Mater. ,. 37. 431-436 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura: "Workability of Zr_<65>Al_<10>Ni_<10>Cu_<15> Bulk Metallic Glass at Supercooled Liquid" Acta Metall.Mater. ,. 46. 253-263 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura: "Stress Overshoot in Stress-Strain Curves of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Appl.Phys.Lett. ,. 71. 779-781 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura: "Superplasticity in Pd_<40>Ni_<40>P_<20> Metallic Glass" Scripta Metall.Mater. ,. 39. 301-306 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura: "Changes in Stress Relaxation due to Yielding in Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Jpn.J.Appl.Phys. ,. 37. L666-L668 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura: "Superplastic Forming of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Mater.Sci.Forum,. 304-306. 373-378 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura, T.Shibata, A.Inoue and T.Masumoto: "Superplastic Deformation of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Scripta Metall.Mater.37. 431 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura, T.Shibata, A.Inoue and T.Masumoto: "Workability of Zr_<65>Al_<10>Ni_<10>Cu_<15> Bulk Metallic Glass at Supercooled Liquid" Acta Metall.Mater.46. 253 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura, T.Shibata, A.Inoue and T.Masumoto: "Stress Overshoot in Stress-Strain Curbes of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Appl.Phys.Lett.71. 779 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura, H.Kato, A.Inoue and T.Masumoto: "Fabrication of Bulk Amorphous Alloys by Powder Consolidation" Int.J.Powder Metallurgy. 33. 50 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura, T.Shibata and A.Inoue: "Changes in Stress Relaxation due to Yielding in Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Jpn.J.Appl.Phys.37. L666 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura, T.Nakamura and A.Inoue: "Superplasticity in Pd_<40>Ni_<40>P_<20> Metallic Glass" Scripta Metall.Mater.39. 301 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura and A.Inoue: "Superplastic Forming of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Mater.Sci.Forum. 373. 304-306 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Kawamura: "Superplasticity in Pd_<40>Ni_<40>P_<20> Metallic Glass" Scripta Metall.Mater.39. 301-306 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Kato: "Newtonian-non-Newtonian Master Flow Curves of a Bulk Glassy Alloy Pd_<40>Ni_<10>Cu_<30>P_<20>" Appl.Phys.Lett.73. 3665-3667 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Nakamura: "Superviscoplasticity in Pd-Based Metallic Glass" Proceedings of the Special Symbosium on Advanced Materials 4. 4. 494-497 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Kawamura: "Superplasticity in Pd_<40>Ni_<40>P_<20> Metallic Glass" Mater.Sci.Forum. 印刷中. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 河村能人: "アモルファス合金粉末の固化成形" 日本金属学会会報 まてりあ. 37. 133-141 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Kawamura, T.Shibata and A.Inoue: "Deformation Behavior and Workability of Supercooled Liquid in Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Sci.Rep.RITU. A43. 107-113 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kawamura, T.Shibata, A.Inoue and T.Masumoto: "Superplastic Deformation of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Scripta Metall.Mater.71. 779-781 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kawamura, T.Shibata, A.Inoue and T.Masumoto: "Workability of Zr_<65>Al_<10>Ni_<10>Cu_<15> Bulk Metallic Glass at Supercooled Liquid" Acta Metall.Mater.46. 253-263 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kawamura, T.Shibata, A.Inoue and T.Masumoto: "Stress Overshool in Stress-Strain Curves of Zr_<65>Al_<10>Ni_<10>Cu_<15> Metallic Glass" Appl.Phys.Lett.37. 431-436 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kawamura, H.Kato, A.Inoue and T.Masumoto: "Fabrication of Bulk Amorphous Alloys by Powder Consolidation" Int.J.Powder Metallurgy. 33. 50-61 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Inoue, Y.Kawamura: "High Strain-Rate Superplasticity of Supercooled Liquid for Amorphous Alloys" Mater.Sci.Forum. 223/224. 147-154 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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