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Development of tungsten-saving binderless hard materials

Research Project

Project/Area Number 24560871
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Material processing/treatments
Research InstitutionAkita University

Principal Investigator

TAIMATSU Hitoshi  秋田大学, 工学(系)研究科(研究院), 教授 (60125721)

Co-Investigator(Kenkyū-buntansha) NINO Akihiro  秋田大学, 工学資源学研究科, 講師 (80451649)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywordsバインダーレス超硬合金 / 炭化タングステン / 炭化モリブデン / 炭化ケイ素 / 反応焼結 / 機械的性質 / 炭化クロム / 炭化バナジウム / 硬さ / ヤング率 / 破壊靭性値 / 硬質セラミックス / 炭化物セラミックス / 熱伝導度 / 通電加圧焼結
Outline of Final Research Achievements

To develop tungsten reduced binderless cemented carbides, we determined synthesis conditions of dense WC-MoC ceramics by reactive resistance-heated hot pressing of WC, Mo2C and C powders, and then using the obtained information we examined compositions with good sintering and mechanical properties. WC-MoC ceramics was possible to be consolidated at 1700°C in the composition range of 5 to 30 mol% MoC. The addition of SiC provided dense ceramics including scarce residual Mo2C and C at lower sintering temperatures than without SiC. This good sinterability of WC-MoC-SiC enabled the preparation of dense ceramics by pressureless sintering at 1900°C.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (6 results)

All 2014 2012 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results)

  • [Journal Article] Preparation of (W, Mo)C-SiC ceramics and their mechanical properties2012

    • Author(s)
      C. Liu, A. Nino, S. Sugiyama and H. Taimatsu
    • Journal Title

      Journal of Japan Society of Powder and Powder Metallurgy

      Volume: 59 Pages: 484-488

    • NAID

      10031075817

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] WC-SiC-Cr3C2セラミックスの機械的性質と微細組織2014

    • Author(s)
      関根崇,仁野章弘,菅原靖,杉山重彰,泰松斉
    • Organizer
      粉体粉末冶金協会平成26年度秋季大会
    • Place of Presentation
      大阪
    • Year and Date
      2014-10-29 – 2014-10-31
    • Related Report
      2014 Annual Research Report
  • [Presentation] ffects of Cr3C2 on the microstructures and mechanical properties of WC-SiC2014

    • Author(s)
      Akihiro Nino, Takashi Sekine, Kazuhisa Sugawara, Shigeaki Sugiyama, Hitoshi Taimatsu
    • Organizer
      2014 Machining, Materials and Mechanical Technologies
    • Place of Presentation
      Taipei, taiwan
    • Year and Date
      2014-08-31 – 2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] 常圧焼結による(W, Mo)C-SiC硬質セラミックスの作製

    • Author(s)
      泰松 斉、劉 超、仁野 章弘、菅原 和久、杉山 重彰
    • Organizer
      日本金属学会
    • Place of Presentation
      金沢大学
    • Related Report
      2013 Research-status Report
  • [Presentation] W-Mo-Si-C硬質セラミックスの常圧焼結による緻密化とその機械的性質

    • Author(s)
      劉超,杉山重彰,仁野章弘,泰松斉
    • Organizer
      紛体粉末冶金協会
    • Place of Presentation
      京都
    • Related Report
      2012 Research-status Report
  • [Presentation] W-Mo-Si-C硬質セラミックスの微細組織

    • Author(s)
      劉超,杉山重彰,仁野章弘,泰松斉
    • Organizer
      日本金属学会
    • Place of Presentation
      松山
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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