Basic and Applied Study on Metal Treatment with Atmospheric-Pressure Plasmas for Contributing Manufacturing and Medical Fields

• Project/Area Number: 15K17482
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Plasma electronics
• Research Institution: Oita University
• Principal Investigator: Ichiki Ryuta 大分大学, 理工学部, 助教 (00454439)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 大気圧プラズマ / 窒化処理 / NHラジカル / 表面硬化 / 生体適合性 / 酸化皮膜 / マルテンサイト変態 / 大気圧プラズマ窒化 / 窒素供給量制御 / 医療用金属 / 浸窒焼入れ / 不動態被膜 / プラズマ窒化 / パルスアーク型プラズマジェット / 誘電体バリア放電

Outline of Final Research Achievements

Before the progress of this project, we shared no knowledge on nitriding with atmospheric-pressure plasma. This project has provided the following basic knowledge and techniques to us.
Basic: NH radical is the key radical in the atmospheric-pressure plasma jet nitriding. The control method of nitrogen into metal surface is established. The dielectric barrier discharge is also available for nitriding. The planar barrier discharge shows peculiar behaviors under high temperature that the ignition area is expanded beyond the area of opposite electrode and the filamentary appearance of discharge becomes glow-like.
Technical: Biocompatibility of titanium for medical use is upgraded by plasma-jet nitriding. Stainless steels with oxide film can be nitrided through the reduction of film by hydrogen. Void formation in nitro-quenching can be suppressed by decreasing the production of NH radicals. These achievements established the scientific value of the atmospheric-pressure plasma nitriding.

Research Products

• [Journal Article] 大気圧プラズマを用いたチタン合金の表面窒化処理 (2018)
  • Author(s): 市來龍大
  • Journal Title: チタン Volume: 66 Pages: 22-26
  • NAID: 40021462064
• [Journal Article] 非真空プラズマ窒化法の研究 (2018)
  • Author(s): 市來龍大
  • Journal Title: 自動車技術 Volume: 72
• [Journal Article] Comparative study on atmospheric-pressure plasma nitriding processes with pulsed-arc jet and barrier discharge (2017)
  • Author(s): R. Ichiki, K. Kitamura, A. Maeda, R. Sannomiya, K. Yamanouchi, S. Chiba, M. Kono, T. Onomoto, S. Akamine, and S. Kanazawa
  • Journal Title: Proceedings of the XXXIII International Conference on Phenomena in Ionized Gases Volume: 1 Pages: 142-142
  • Peer Reviewed
• [Journal Article] Calcium phosphate film formation on TiN surface created by atmospheric-pressure plasma (2017)
  • Author(s): R. Sannomiya, R. Ichiki, K. Hanada, S. Akamine, and S. Kanazawa
  • Journal Title: Proceedings of the XXXIII International Conference on Phenomena in Ionized Gases Volume: 1 Pages: 168-168
  • Peer Reviewed
• [Journal Article] Investigation on local formation of expanded austenite phase by atmospheric-pressure plasma jet (2017)
  • Author(s): A. Maeda, R. Ichiki, R. Tomizuka, H. Nishiguchi, T. Onomoto, S. Akamine, and S. Kanazawa
  • Journal Title: Proceedings of the XXXIII International Conference on Phenomena in Ionized Gases Volume: 1 Pages: 169-169
  • Peer Reviewed
• [Journal Article] 大気圧プラズマ窒化処理への真空パージ法の導入 (2017)
  • Author(s): 市來龍大，中谷達行，金澤誠司
  • Journal Title: 岡山理科大学紀要 Volume: 53 Pages: 69-73
  • NAID: 40021487201
  • Peer Reviewed / Open Access
• [Journal Article] Application Of Atmospheric-Pressure Plasma Nitriding To Complex-Shaped Steels (2016)
  • Author(s): R. Ichiki, K. Yamanouchi, A. Maeda, H. Yamamoto, S. Akamine, and S. Kanazawa
  • Journal Title: Proceedings of the 21st International Conference on Gas Discharges and their Applications Volume: - Pages: 433-436
  • Peer Reviewed
• [Journal Article] Demonstration Of Nitriding By Dielectric Barrier Discharge And Investigation Of Treatment Range Controllability (2016)
  • Author(s): K. Kitamura, R. Ichiki, T. Tsuru, S. Akamine, and S. Kanazawa
  • Journal Title: Proceedings of the 21st International Conference on Gas Discharges and their Applications Volume: - Pages: 429-432
  • NAID: 40020909754
  • Peer Reviewed
• [Journal Article] Experimental Demonstration of Nitro-Quenching by Atmospheric-Pressure Plasma Jet (2015)
  • Author(s): 井上貴史，市來龍大，三谷将樹，吉田昌史，赤峰修一，金澤誠司
  • Journal Title: NETSUSHORI Volume: 55 Issue: 3 Pages: 165-171
  • DOI: 10.14940/netsushori.55.165
  • NAID: 130005087793
  • ISSN: 0288-0490, 2188-4064
  • Peer Reviewed / Open Access
• [Journal Article] Temperature Dependence of Nitro-Quenching by Atmospheric-Pressure Plasma (2015)
  • Author(s): M. Mitani, R. Ichiki, Y. Iwakiri, S. Akamine, and S. Kanazawa
  • Journal Title: Proceedings of 9th International Conference on Reactive Plasmas Volume: CD-ROM
• [Presentation] 高温下における誘電体バリア放電の挙動観測 (2018)
  • Author(s): 神田直人，市來龍大，喜多村圭一，赤峰修一，金澤誠司
  • Organizer: 電気学会全国大会
• [Presentation] 大気圧プラズマによって局所形成された拡張オーステナイト相の調査 (2017)
  • Author(s): 前田章秀，市來龍大，冨塚凌，赤峰修一，金澤誠司
  • Organizer: 第64回応用物理学会春季学術講演会
  • Place of Presentation: パシフィコ横浜（横浜市）
  • Year and Date: 2017-03-14
• [Presentation] Feasibility of DBD Nitriding with Nitrogen-Based Gases (2017)
  • Author(s): 市來龍大，津留卓斗，喜多村圭一，赤峰修一，金澤誠司
  • Organizer: 第34回プラズマプロセシング研究会／第29回プラズマ材料科学シンポジウム
  • Place of Presentation: 北海道大学（札幌市）
  • Year and Date: 2017-01-16
• [Presentation] Nitrogen Diffusion Treatment to Metal Surface using Atmospheric-Pressure Plasmas (2017)
  • Author(s): Ryuta Ichiki
  • Organizer: 1st Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] 大気圧プラズマ窒化処理法の開発と応用の提案 (2017)
  • Author(s): 市來龍大
  • Organizer: 産業技術連携推進会議製造プロセス部会表面技術分科会DLC技術研究会
  • Invited
• [Presentation] 各種金属に対する大気圧プラズマ拡散処理の特性とその応用 (2017)
  • Author(s): 市來龍大
  • Organizer: 「境界プラズマ挙動の理解と異分野間融合による新展開」研究会
  • Invited
• [Presentation] Comparative study on atmospheric-pressure plasma nitriding processes with pulsed-arc jet and barrier discharge (2017)
  • Author(s): R. Ichiki, K. Kitamura, A. Maeda, R. Sannomiya, K. Yamanouchi, S. Chiba, M. Kono, T. Onomoto, S. Akamine, and S. Kanazawa
  • Organizer: XXXIII International Conference on Phenomena in Ionized Gases
  • Int'l Joint Research
• [Presentation] Calcium phosphate film formation on TiN surface created by atmospheric-pressure plasma (2017)
  • Author(s): R. Sannomiya, R. Ichiki, K. Hanada, S. Akamine, and S. Kanazawa
  • Organizer: XXXIII International Conference on Phenomena in Ionized Gases
  • Int'l Joint Research
• [Presentation] Investigation on local formation of expanded austenite phase by atmospheric-pressure plasma jet (2017)
  • Author(s): A. Maeda, R. Ichiki, R. Tomizuka, H. Nishiguchi, T. Onomoto, S. Akamine, and S. Kanazawa
  • Organizer: XXXIII International Conference on Phenomena in Ionized Gases
  • Int'l Joint Research
• [Presentation] Surface modification of titanium alloy for medical use with atmospheric-pressure plasma (2017)
  • Author(s): Ryuta Ichiki
  • Organizer: International Workshop on Plasma Scientech for All Something
  • Int'l Joint Research
• [Presentation] Investigation on Hard-Tissue Compatibility of TiN Surface formed by Atmospheric-Pressure Plasma Nitriding (2017)
  • Author(s): Ryuta Ichiki, Ryuji Sannomiya, Ryoto Otani, Shuichi Akamine, Seiji Kanazawa
  • Organizer: International Symposium on Dry Process
  • Int'l Joint Research
• [Presentation] 大気圧プラズマ窒化法による貫通穴内壁の硬化処理 (2017)
  • Author(s): 市來龍大，金澤誠司
  • Organizer: 日本鉄鋼協会第174回秋季講演大会
• [Presentation] 大気圧プラズマジェット拡散処理系における窒素供給量の制御法 (2017)
  • Author(s): 市來龍大，河野将之，小野本達郎，赤峰修一，金澤誠司
  • Organizer: Plasma Conference 2017
• [Presentation] 大気圧プラズマによるオーステナイト系ステンレス鋼の窒化 (2017)
  • Author(s): 來龍大，前田章秀，木元亮太，西口宏泰，赤峰修一，金澤誠司，小野本達郎
  • Organizer: 日本熱処理技術協会第８４回秋季講演大会
• [Presentation] 大気圧プラズマ窒化系における真空パージの有効性の検証 (2017)
  • Author(s): 千葉清芽，市來龍大，山之内健太，中谷達行，上野崇寿，赤峰修一，金澤誠司
  • Organizer: 電気学会プラズマ・パルスパワー・放電合同研究会
• [Presentation] 大気圧プラズマによる拡張オーステナイト相形成の可能性 (2016)
  • Author(s): 前田章秀，市來龍大，冨塚凌，赤峰 修一，金澤 誠司
  • Organizer: プラズマ核融合学会九州・沖縄・山口支部 第20回支部大会
  • Place of Presentation: 九州大学（福岡市）
  • Year and Date: 2016-12-17
• [Presentation] 酸化抑制のための大気圧プラズマ浸窒焼入れ実験系の開発 (2016)
  • Author(s): 河野将之，市來龍大，三谷将樹，赤峰 修一，金澤 誠司，金山信幸
  • Organizer: プラズマ核融合学会九州・沖縄・山口支部 第20回支部大会
  • Place of Presentation: 九州大学（福岡市）
  • Year and Date: 2016-12-17
• [Presentation] 大気圧平板型バリア放電による窒化の実証と応用の提案 (2016)
  • Author(s): 市來龍大，津留卓斗，喜多村圭一，赤峰修一，金澤誠司
  • Organizer: 第82回日本熱処理技術協会講演大会
  • Place of Presentation: 名城大学（名古屋市）
  • Year and Date: 2016-12-08
• [Presentation] Application Of Atmospheric-Pressure Plasma Nitriding To Complex-Shaped Steels (2016)
  • Author(s): R. Ichiki, K. Yamanouchi, A. Maeda, H. Yamamoto, S. Akamine, and S. Kanazawa
  • Organizer: 21st International Conference on Gas Discharges and their Applications
  • Place of Presentation: 名古屋大学（名古屋市）
  • Year and Date: 2016-09-09
  • Int'l Joint Research
• [Presentation] Demonstration Of Nitriding By Dielectric Barrier Discharge And Investigation Of Treatment Range Controllability (2016)
  • Author(s): K. Kitamura, R. Ichiki, T. Tsuru, S. Akamine, and S. Kanazawa
  • Organizer: 21st International Conference on Gas Discharges and their Applications
  • Place of Presentation: 名古屋大学（名古屋市）
  • Year and Date: 2016-09-09
  • Int'l Joint Research
• [Presentation] 大気圧プラズマ窒化した医療用チタン合金の硬組織適合性の調査 (2016)
  • Author(s): 三宮竜二，市來龍大，赤峰修一，金澤誠司
  • Organizer: 電気学会 プラズマ研究会
  • Place of Presentation: 大阪市立大学（大阪市）
  • Year and Date: 2016-08-08
• [Presentation] 誘電体バリア放電による窒化パターニングの可能性の検証 (2016)
  • Author(s): 喜多村圭一，市來龍大，津留卓斗，赤峰 修一，金澤 誠司
  • Organizer: 平成28年電気学会基礎・材料・共通部門大会
  • Place of Presentation: 九州工業大学（北九州市）
  • Year and Date: 2016-08-05
• [Presentation] 大気圧プラズマ窒化した窒化チタンのリン酸カルシウム膜形成の調査 (2016)
  • Author(s): 三宮竜二，市來龍大，赤峰 修一，金澤 誠司
  • Organizer: 平成28年電気学会基礎・材料・共通部門大会
  • Place of Presentation: 九州工業大学（北九州市）
  • Year and Date: 2016-08-05
• [Presentation] Atmospheric-Pressure Plasma Nitriding using Dielectric Barrier Discharge (2016)
  • Author(s): Takuto Tsuru, Ryuta Ichiki, Keiichi Kitamura, Shuichi Akamine, and Seiji Kanazawa
  • Organizer: 18th International Conference on Plasma Physics
  • Place of Presentation: 高雄市（台湾）
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] Nitriding of Holes Cavity by Atmospheric-pressure Plasma Jet (2016)
  • Author(s): Kenta Yamanouchi, Akihide Maeda, Ryuta Ichiki, Hirofumi Yamamoto, Shuichi Akamine, and Seiji Kanazawa
  • Organizer: 18th International Conference on Plasma Physics
  • Place of Presentation: 高雄市（台湾）
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] 誘電体バリア放電による窒化の実証と処理範囲制御性の調査 (2016)
  • Author(s): 喜多村圭一，市來龍大，津留卓斗，赤峰修一，金澤誠司
  • Organizer: 電気学会 プラズマ／パルスパワー／放電合同研究会
  • Place of Presentation: 岩手大学（盛岡市）
  • Year and Date: 2016-05-26
• [Presentation] 大気圧プラズマジェットによる貫通穴の内壁の窒化処理 (2016)
  • Author(s): 山野内健太，前田章秀，市來龍大，山本宏文，赤峰修一，金澤誠司
  • Organizer: 電気学会 プラズマ／パルスパワー／放電合同研究会
  • Place of Presentation: 岩手大学（盛岡市）
  • Year and Date: 2016-05-26
• [Presentation] Surface Nitriding by Atmospheric-Pressure Plasma Technology (2016)
  • Author(s): Ryuta Ichiki
  • Organizer: 13th Asia-Pacific Conference on Plasma Science and Technology
  • Place of Presentation: 上海市（中国）
  • Year and Date: 2016-05-19
  • Int'l Joint Research / Invited
• [Presentation] Surface Nitriding of Metals with Atmospheric-Pressure Plasmas (2016)
  • Author(s): Ryuta Ichiki
  • Organizer: 8th International Workshop on Plasma Scientech for All Something
  • Place of Presentation: 西安市（中国）
  • Year and Date: 2016-04-09
  • Int'l Joint Research / Invited
• [Presentation] 誘電体バリア放電を用いた大気圧プラズマ窒化 (2016)
  • Author(s): 津留卓斗，喜多村圭一，市來龍大，赤峰修一，金澤誠司
  • Organizer: 第63回応用物理学会春季学術講演会
  • Place of Presentation: 東京工業大学 （東京都目黒区）
  • Year and Date: 2016-03-19
• [Presentation] Improving Metal Surface with Nitrogen-Based Atmospheric-Pressure Plasma (2015)
  • Author(s): 市來龍大
  • Organizer: 7th International Workshop on Plasma Scientech for All Something
  • Place of Presentation: 岩手大学 （岩手県盛岡市）
  • Year and Date: 2015-11-07
  • Int'l Joint Research
• [Presentation] Temperature Dependence of Nitro-Quenching by Atmospheric-Pressure Plasma (2015)
  • Author(s): 三谷将樹，市來龍大，岩切祐太朗，赤峰修一，金澤誠司
  • Organizer: 9th International Conference on Reactive Plasmas
  • Place of Presentation: ホノルル市 （米国）
  • Year and Date: 2015-10-12
  • Int'l Joint Research
• [Remarks] 大気圧プラズマによる金属材料の高性能化
  • URL: http://elecls.cc.oita-u.ac.jp/plasma/research/metal.html
• [Remarks] 大分大学工学部電気電子工学科 金澤・市來研究室
  • URL: http://elecls.cc.oita-u.ac.jp/plasma/
• [Patent(Industrial Property Rights)] 窒化処理装置 (2017)
  • Inventor(s): 市來龍大，金澤誠司，中谷達行，永島正嗣，崔源煥
  • Industrial Property Rights Holder: 市來龍大，金澤誠司，中谷達行，永島正嗣，崔源煥
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2017-087536
  • Filing Date: 2017
• [Patent(Industrial Property Rights)] 誘電体バリア放電による金属表層の硬化方法 (2016)
  • Inventor(s): 市來龍大，津留卓斗，喜多村圭一，赤峰修一，金澤誠司
  • Industrial Property Rights Holder: 大分大学
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2016-056206
  • Filing Date: 2016-03-18