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Nanoscale Surface Self-Patterning and Functionalizing of Intermetallic Compounds by Atomic Vacancy Controlling

Research Project

Project/Area Number 16360339
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionTohoku University

Principal Investigator

YOSHIMI Kyosuke  Tohoku University, Graduate School of Environmental Studies, Associate Professor, 大学院環境科学研究科, 助教授 (80230803)

Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥15,200,000 (Direct Cost: ¥15,200,000)
Fiscal Year 2006: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2005: ¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 2004: ¥8,900,000 (Direct Cost: ¥8,900,000)
Keywordsintermetallic compound / atomic vacancy / rapid solidification / single crystal / FeAl / NiAl / nanopore / CoAl / 自己組織化 / ナノ金微粒子 / TiCo / 水素吸蔵合金
Research Abstract

In the present study, for the rapidly solidified ribbons of Ni-42, 46 and 50at%Al, the concentration of supersaturated atomic vacancies was determined and their self-organization behavior was investigated. The lattice parameter of the three kinds of ribbons was refined by analyzing their XRD profiles, and their density was measured by the constant-volume dilatation method. Using the determined lattice parameter and density, the concentration of supersaturated vacancies was estimated for the three kinds of ribbons, indicating that the concentration clearly shows composition dependence. The aging heat treatment of 973 or 1073 K for 10 h was given to the three kinds of the rapidly solidified ribbons, and then surface morphology changes were observed by scanning electron microscopy (SEM). After the aging heat treatment, the nanopore formation near surfaces was confirmed in Ni-46 and 50at%Al, whereas no evident change in surface morphology was observed in Ni-42at%Al. Pore density was higher … More in Ni-50at%Al than in Ni-46at%Al, but there was no significant change in pore density due to the difference of aging temperature in either case. Therefore, it has been clarified that, in rapidly solidified NiAl intermetallic compounds, nanoporous surfaces can be formed by the condensation process of supersaturated vacancies in the similar manner of FeAl intermetallic compound.
The self-organization behavior of supersaturated thermal vacancies was further investigated for Ni-50at%Al single crystal quenched from 1673 K. It was found that nanopores formed near surfaces were faceted by {110} habit planes and accordingly surface morphology in NiAl intermetallic compound formed by the condensation process of supersaturated thermal vacancies was different from that in FeAl intermetallic compound. Furthermore, it was clarified that the pore size and density in NiAl intermetallic compound can be controlled by quenching temperature, aging temperature, aging time in the similar way of FeAl intermetallic compound. Less

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (19 results)

All 2007 2006 2005

All Journal Article (17 results) Book (2 results)

  • [Journal Article] ナノポーラス金属材料とボトムアップ型ナノ組織制御2007

    • Author(s)
      吉見 享祐
    • Journal Title

      日本金属学会報まてりあ 46・3

      Pages: 220-224

    • NAID

      10018736116

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Nanoporous Metallic Materials and Nanostructure Control by Bottom-up Technology2007

    • Author(s)
      Kyosuke Yoshimi
    • Journal Title

      Materia Japan 46,3

      Pages: 220-224

    • NAID

      10018736116

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] ナノポーラス金属材料とボトムアップ型ナノ組織制御2007

    • Author(s)
      吉見享祐
    • Journal Title

      日本金属学会報まてりあ 46・3

      Pages: 220-224

    • NAID

      10018736116

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Nanoscale Surface Self-Patterning of FeAl Single Crystals by Vacancy Absorption Process2006

    • Author(s)
      K.Yoshimi et al.
    • Journal Title

      Applied Physics Letters 89・7

      Pages: 73110-73110

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 原子空孔を利用したB2型金属間化合物のナノ表面形態とナノテンプレートへの応用2006

    • Author(s)
      吉見 享祐
    • Journal Title

      金属 76・7

      Pages: 769-774

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Meso-Structure Controlling of B2-Type FeAl by Vacancy Absorption Process2006

    • Author(s)
      K.Yoshimi
    • Journal Title

      Proceedings of 15^<th> International Symposium on Processing and Fabrication of Advanced Materials

      Pages: 317-330

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Nanoscale Surface Self-Patterning of FeAl Single Crystals by Vacancy Absorption Process2006

    • Author(s)
      K.Yoshimi et al.
    • Journal Title

      Applied Physics Letters 89,7

      Pages: 73110-73110

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Nanoscale Surface Morphology in B2-type Intermetallic Compound Formed by Atomic Vacancies and Their Application to Nanotemplates2006

    • Author(s)
      Kyosuke Yoshimi
    • Journal Title

      Kinzoku 76,7

      Pages: 769-774

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Meso-Structure Controlling of B2-Type FeAl by Vacancy Absorption Process2006

    • Author(s)
      Kyosuke Yoshimi
    • Journal Title

      Proceedings of 15^<th> International Symposium on Processing and Fabrication of Advanced Materials

      Pages: 317-330

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Nanoscale Surface Self-Patterning of FeAl Single Crsytals by Vacancy Absorption Process2006

    • Author(s)
      K.Yoshimi et al.
    • Journal Title

      Applied Physics Letters 89・7

      Pages: 73110-73110

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 原子空孔を利用したB2型金属間化合物のナノ表面形態とナノテンプレートへの応用2006

    • Author(s)
      吉見享祐
    • Journal Title

      金属 76・7

      Pages: 769-774

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Thermal Analysis of Lattice Defects in LaNi_52006

    • Author(s)
      Rysuke Nakamura
    • Journal Title

      Journal of Alloys and Compounds 413

      Pages: 211-213

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Vacancy Clustering and Relaxation Behavior in Rapidly Solidified B2 FeAl Ribbons2005

    • Author(s)
      Tomohide Haraguchi
    • Journal Title

      Acta Metallurgica 52・13

      Pages: 3725-3764

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Surface Mesostructure Change of B2-type FeAl Single Crystals by Condensation of Supersaturated Thermal Vacancies2005

    • Author(s)
      Kyosuke Yoshimi et al.
    • Journal Title

      Philosophical Magazine Vol.85

      Pages: 331-344

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Substructure Development in Rapidly Solidified B2-type TiCo Ribbons2005

    • Author(s)
      Kyosuke Yoshimi et al.
    • Journal Title

      Materials Science Forum Vol.475-479

      Pages: 849-852

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Effect of Heat Treatments on Microstructure of Rapidly Solidified TiCo Ribbons2005

    • Author(s)
      Kyosuke Yoshimi et al.
    • Journal Title

      MRS Symposium Proceedings Vol.842(印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Thermal Analysis of Relaxation Processes of Supersaturated Vacancies in B2-type Aluminides2005

    • Author(s)
      Ryusuke Nakamura et al.
    • Journal Title

      MRS Symposium Proceedings Vol.842(印刷中)

    • Related Report
      2004 Annual Research Report
  • [Book] ナノマテリアル工学大系 第2巻 ナノ金属2006

    • Author(s)
      吉見 享祐
    • Total Pages
      914
    • Publisher
      フジ・テクノシステム
    • Related Report
      2005 Annual Research Report
  • [Book] ナノコンポジットマテリアル2005

    • Author(s)
      吉見 享祐
    • Total Pages
      363
    • Publisher
      フロンティア出版
    • Related Report
      2005 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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