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2013 Fiscal Year Final Research Report

Research on Low-Temperature Material Processings Using Supersonic Plasma Jets

Research Project

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Project/Area Number 23656543
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Aerospace engineering
Research InstitutionOsaka Institute of Technology

Principal Investigator

TAHARA Hirokazu  大阪工業大学, 工学部, 教授 (20207210)

Co-Investigator(Kenkyū-buntansha) UETSUJI Yasutomo  大阪工業大学, 工学部, 准教授 (00340604)
Project Period (FY) 2011 – 2013
Keywordsプラズマジェット / 超音速 / 熱力学的非平衡 / 材料加工 / 表面処理 / 低温処理 / 溶射
Research Abstract

In low-pressure plasma spraying, a plasma jet generator with a supersonic expansion nozzle is useful for spraycoating hard and large-area films adhering strongly to substrates. In the expansion nozzle, the pressure and the electron density drastically decrease downstream, and therefore the plasma is in thermodynamical nonequilibrium state. In this study, titanium nitride reactive spraying was carried out under a low-pressure environment using a DC arc plasma jet generator. Titanium powders were injected using a hollow cathode with argon gas, and the plasma gas was nitrogen or nitrogen and hydrogen mixture. Microstructure and properties of the coatings were examined using SEM and XRD. A dense and high-quality TiN coating with a Vickers hardness of 2000 was formed at a low substrate temperature of 700 oC with a low input power of 5.3 kW. All results showed that the supersonic plasma jet in thermodynamical and chemical nonequilibrium state had high potentials for reactive spraying.

  • Research Products

    (12 results)

All 2014 2013 2012 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (5 results) Remarks (1 results)

  • [Journal Article] Research and Development of Steady-State Magnetoplasmadynamic Arcjet Thrusters with Permanent Magnets and Multi-Hollow Cathodes2013

    • Author(s)
      Norihide Koyama, Tomoya Suzuki, Taisuke Kubota and Hirokazu Tahara
    • Journal Title

      Frontier of Applied Plasma Technology

      Volume: Vol.6, No.2 Pages: 45-50

    • Peer Reviewed
  • [Journal Article] Development of Long-Life Lightweight Arcjets2013

    • Author(s)
      Daisuke Nakata, Kiyoshi Kinefuchi, Satoshi Hosoda, Masahiro Kinoshita, Hirokazu Tahara and Hitoshi Kuninaka
    • Journal Title

      33rd International Electric Propulsion Conference (33rd IEPC), George Washington University, Washington, D.C., USA

      Volume: EPC-2013-292 Pages: 1-10

    • Peer Reviewed
  • [Journal Article] Performance Characteristics of Low-Power Arcjet Thrusters Using Low Toxicity Propellant HAN Decomposed Gas2013

    • Author(s)
      Kazuma Matsumoto, Akira Iwakai, Fumihiro Inoue, Hirokazu Tahara, Taiichi Nagata and Ideo Masuda
    • Journal Title

      33rd International Electric Propulsion Conference (33rd IEPC), George Washington University, Washington, D.C., USA

      Volume: IEPC-2013-095 Pages: 1-10

    • Peer Reviewed
  • [Journal Article] Performance Characteristics of Steady-State MPD Thrusters with Permanent Magnets and Multi Hollow Cathodes for In-Space Propulsion2013

    • Author(s)
      Norihide Koyama, Tomoya Suzuki, Taisuke Kubota and Hirokazu Tahara
    • Journal Title

      33rd International Electric Propulsion Conference (33rd IEPC), George Washington University, Washington, D.C., USA

      Volume: IEPC-2013-094 Pages: 1-10

    • Peer Reviewed
  • [Journal Article] Performance Characteristics of Direct-Current Arcjet Thrusters Using Clean Propellant "Hydroxyl Ammonium Nitrate"2012

    • Author(s)
      Tomoyuki Ikeda, Hirokazu Tahara and Yosuke Watanabe
    • Journal Title

      Frontier of Applied Plasma Technology

      Volume: Vol.5, No.2 Pages: 73-78

    • Peer Reviewed
  • [Journal Article] 低毒性推進剤を用いたアークジェットスラスタの基礎作動実験2012

    • Author(s)
      池田知行, 藤田雄也, 松本和真, 杉村勇也, 田原弘一, 渡辺陽介
    • Journal Title

      プラズマ応用科学

      Volume: Vol.20-1 Pages: 27-32

    • Peer Reviewed
  • [Presentation] HAN系推進剤を用いた1-3kW級直流アークジェットスラスタの開発研究2014

    • Author(s)
      岩階章, 井上史博, 松本和真, 田原弘一, 長田泰一, 増田井出夫, 野川雄一郎
    • Organizer
      平成25年度宇宙輸送シンポジウム
    • Place of Presentation
      JAXA宇宙科学研究所(神奈川県相模原市)
    • Year and Date
      2014-01-17
  • [Presentation] グリーンプロペラントを用いた低電力アークジェットスラスタの性能特性2014

    • Author(s)
      井上史博, 岩階 章, 松本和真, 田原弘一, 長田泰一, 増田井出夫, 野川雄一郎
    • Organizer
      平成25年度宇宙輸送シンポジウム
    • Place of Presentation
      JAXA宇宙科学研究所(神奈川県相模原市)
    • Year and Date
      2014-01-17
  • [Presentation] 低電力直流アークジェットスラスタにおけるHAN系及び水推進剤の実用化2013

    • Author(s)
      岩階 章, 松本和真, 井上史博, 田原弘一, 長田泰一, 増田井出夫, 野川雄一郎
    • Organizer
      第57回宇宙科学技術連合講演会
    • Place of Presentation
      米子コンベンションセンター「ビッグシップ」(鳥取県米子市)
    • Year and Date
      2013-10-10
  • [Presentation] HAN 系推進剤を用いた低電力アークジェットスラスタシステムの開発研究2013

    • Author(s)
      松本 和真, 杉村 勇也, 藤田 雄也, 田原弘一, 長田 泰一, 増田井出夫
    • Organizer
      第53回航空原動機・宇宙推進講演会
    • Place of Presentation
      倉敷市芸文館(岡山県倉敷市)
    • Year and Date
      2013-03-05
  • [Presentation] 低毒性推薬分解ガスを用いた低電力直流アークジェットスラスタの性能評価2012

    • Author(s)
      藤田雄也, 松本和真, 杉村勇也, 田原弘一, 長田泰一, 増田井出夫
    • Organizer
      第56回宇宙科学技術連合講演会
    • Place of Presentation
      別府国際コンベンションセンター(ビーコンプラザ)(大分県別府市)
    • Year and Date
      2012-11-20
  • [Remarks]

    • URL

      http://www.oit.ac.jp/med/~tahara/jp/index-j.html

URL: 

Published: 2015-06-25  

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