Investigation of the mechanism of nano-scale gas lubrication via molecular gas dynamics approach

• Project/Area Number: 20560146
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Tohoku University
• Principal Investigator: YONEMURA Shigeru Tohoku University, 流体科学研究所, 准教授 (00282004)
• Co-Investigator(Kenkyū-buntansha): TOKUMASU Takashi 東北大学, 流体科学研究所, 准教授 (10312662)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: トライボロジー / 気体潤滑 / 分子気体力学 / DSMC法 / 流体工学

Research Abstract

In this research, we paid attention to the low friction which appeared when the sliding speed of diamond coating on a rotating metal disk was increased to 2-3 m/s. We solved the lubrication mechanism of this low friction by way of numerical simulation and showed that the diamond coating was floated by high pressure induced by micro/nano-scale gas flow between the diamond coating with micro/nano-scale surface structure and the counter metal surface. We also showed that this was a new phenomenon peculiar to micro/nano-scale gas flow.

Research Products

• [Journal Article] Effect of Configuration of Micro-/Nanoscale Structure on Sliding Surface on Molecular Gas-Film Lubrication (2011)
  • Author(s): Susumu Isono, Masashi Yamaguchi, Shigeru Yonemura, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi
  • Journal Title: AIP Conference Proceedings in press.
  • Peer Reviewed
• [Journal Article] Numerical Analysis of Gas Flow in Porous Media with Surface Reaction (2011)
  • Author(s): Ko Tomarikawa, Shigeru Yonemura, Takashi Tokumasu, Tetsuya Koido
  • Journal Title: AIP Conference Proceedings in press.
  • NAID: 110008460096
  • Peer Reviewed
• [Journal Article] Kinetic Force Method with Quasiparticle Pairs for Numerical Modeling 3D Rarefied Gas Flows (2011)
  • Author(s): V.L.Saveliev, S.A.Filko, K.Tomarikawa, S, Yonemura
  • Journal Title: AIP Conference Proceedings in press.
  • Peer Reviewed
• [Journal Article] Effect of Configuration of Micro-/Nanoscale Structure on Sliding Surface on Molecular Gas-Film Lubrication (2011)
  • Author(s): Susumu Isono, Masashi Yamaguchi, Shigeru Yonemura, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi
  • Journal Title: AIP Conference Proceedings Volume: 未定(accepted)
  • Peer Reviewed
• [Journal Article] Numerical Analysis of Gas Flow in Porous Media with Surface Reaction (2011)
  • Author(s): Ko Tomarikawa, Shigeru Yonemura, Takashi Tokumasu, Tetsuya Koido
  • Journal Title: AIP Conference Proceedings Volume: 未定(accepted)
  • NAID: 110008460096
  • Peer Reviewed
• [Journal Article] Kinetic Force Method with Quasiparticle Pairs for Numerical Modeling 3D Rarefied Gas Flows (2011)
  • Author(s): V.L.Saveliev, S.A.Filko, K.Tomarikawa, S,Yonemura
  • Journal Title: AIP Conference Proceedings Volume: 未定(accepted)
  • Peer Reviewed
• [Journal Article] Molecular Dynamics Study of the Dissociation of H2/D2 on Pt(111) Including Thermal Motion Compared with Molecular Beam Experiments (2010)
  • Author(s): Tetsuya Koido, Daigo Ito, Takashi Tokumasu, Ko Tomarikawa, Shigeru Yonemura
  • Journal Title: ECS Transactions Vol.25 Pages: 59-68
  • Peer Reviewed
• [Journal Article] A Molecular Dynamics Study for the Dissociation Phenomena of Gas Molecule on Metal Surface (2010)
  • Author(s): Takashi Tokumasu, Daigo Ito
  • Journal Title: e-Journal of Surface Science and Nanotechnology Vol.8 Pages: 211-216
  • NAID: 130004439234
  • Peer Reviewed
• [Journal Article] Molecular Dynamics Study of the Dissociation of H2/D2 on Pt(111)Including Thermal Motion Compared with Molecular Beam Experiments (2010)
  • Author(s): Tetsuya Koido, Daigo Ito, Takashi Tokumasu, Ko Tomarikawa, Shigeru Yonemura
  • Journal Title: ECS Transactions 25 Pages: 59-68
  • Peer Reviewed
• [Journal Article] A Molecular Dynamics Study for the Dissociation Phenomena of Gas Molecule on Metal Surface (2010)
  • Author(s): Takashi Tokumasu, Daigo Ito
  • Journal Title: e-Journal of Surface Science and Nanotechnology (未定, accepted)
  • NAID: 130004439234
  • Peer Reviewed
• [Journal Article] Effect of Micro Gas Flow on Low Friction Properties of Diamond Coating with Partly Polished Surface (2008)
  • Author(s): S.Yonemura, M.Yamaguchi, T.Takeno, H.Miki, T.Takagi
  • Journal Title: AIP Conference Proceedings, RAREFIED GAS DYNAMICS Vol.1084 Pages: 1153-1157
  • Peer Reviewed
• [Journal Article] Molecular Dynamics Study for Dissociation Phenomena of a Gas Molecule on a Metal Surface (2008)
  • Author(s): Takashi Tokumasu, Kanako Hara, Daigo Ito
  • Journal Title: Heat Transfer-Asian Research Vol.37 Pages: 485-497
  • NAID: 130004439234
  • Peer Reviewed
• [Journal Article] Effect of Micro Gas Flow on Low Friction Properties of Diamond Coating with Partly Polished Surface (2008)
  • Author(s): S. Yonemura, M. Yamaguchi, T. Takeno, H. Miki, and T. Takagi
  • Journal Title: AIP Conference Proceedings, RAREFIED GAS DYNAMICS 1084 Pages: 1153-1157
  • Peer Reviewed
• [Journal Article] Molecular Dynamics Study for Dissociation Phenomena of a Gas Molecule on a Metal Surface (2008)
  • Author(s): Takashi Tokumasu, Kanako Nara, Daigo Ito
  • Journal Title: Heat Transfer-Asian Research 37 Pages: 485-497
  • NAID: 130004439234
  • Peer Reviewed
• [Presentation] A Gas Lubrication Expressed at Microand Nanoscales (2010)
  • Author(s): 米村茂, 磯野晋, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 15th International Conference on the Methods of Aerophysical Research
  • Place of Presentation: Novosibirsk, Russia.
  • Year and Date: 2010-11-02
• [Presentation] Effect of Configuration of Fine Structure on Sliding Surface on Micro-/Nanoscale Gas-Film Lubrication (2010)
  • Author(s): 磯野晋, 山口雅志, 米村茂, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: Seventh International Conference on Flow Dynamics
  • Place of Presentation: Sendai, Japan.
  • Year and Date: 2010-11-02
• [Presentation] Kinetic Force Method with Quasiparticle Pairs for Numerical Modeling Micro Gas Flow in a Vacuum Pump (2010)
  • Author(s): V.L.Saveliev, S.A.Filko, K.Tomarikawa, S.Yonemura
  • Organizer: Tenth International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration
  • Place of Presentation: Sendai, Japan.
  • Year and Date: 2010-11-02
• [Presentation] Effect of Configuration of Fine Structure on Sliding Surface on Micro-/Nanoscale Gas-Film Lubrication (2010)
  • Author(s): Susumu Isono, Masashi Yamaguchi, Shigeru Yonemura, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi
  • Organizer: Seventh International Conference on Flow Dynamics
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2010-11-02
• [Presentation] Kinetic Force Method with Quasiparticle Pairs for Numerical Modeling Micro Gas Flow in a Vacuum Pump (2010)
  • Author(s): V.L.Saveliev, S.A.Filko, K.Tomarikawa, S.Yonemura
  • Organizer: Tenth International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2010-11-02
• [Presentation] A Gas Lubrication Expressed at Micro- and Nanoscales (2010)
  • Author(s): S.Yonemura, S.Isono, M.Yamaguchi, T.Takeno, H.Miki, T.Takagi
  • Organizer: 15th International Conference on the Methods of Aerophysical Research
  • Place of Presentation: Novosibirsk, Russia
  • Year and Date: 2010-11-02
• [Presentation] マイクロ・ナノスケール気体潤滑における摺動表面微細構造の形状の影響 (2010)
  • Author(s): 磯野晋, 山口雅志, 米村茂, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 日本機械学会第88期流体工学部門講演会
  • Place of Presentation: 山形大学(米沢市)
  • Year and Date: 2010-10-31
• [Presentation] 表面反応を伴った多孔質体内を流れる気体の熱流動解析 (2010)
  • Author(s): 泊川晃, 米村茂, 徳増崇, 小井戸哲也
  • Organizer: 日本流体力学会年会2010
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-09-09
• [Presentation] 分子気体潤滑における摺動表面の微細構造の形状の影響 (2010)
  • Author(s): 磯野晋, 山口雅志, 米村茂, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 日本機械学会2010年度年次大会
  • Place of Presentation: 名古屋工業大学(名古屋市)
  • Year and Date: 2010-09-06
• [Presentation] 多孔質体内を流れる気体の熱流動解析 (2010)
  • Author(s): 泊川晃, 米村茂, 徳増崇, 小井戸哲也
  • Organizer: 日本機械学会2010年度年次大会
  • Place of Presentation: 名古屋工業大学(名古屋市)
  • Year and Date: 2010-09-06
• [Presentation] Kinetic Force Method with Quasiparticle Pairs for Numerical Modeling 3D Rarefied Gas Flows (2010)
  • Author(s): V.L.Saveliev, S.A.Filko, K.Tomarikawa, S.Yonemura
  • Organizer: 27th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Pacific Grove, California, USA.
  • Year and Date: 2010-07-14
• [Presentation] Kinetic Force Method with Quasiparticle Pairs for Numerical Modeling 3D Rarefied Gas Flows (2010)
  • Author(s): V.L.Saveliev, S.A.Filko, K.Tomarikawa, S, Yonemura
  • Organizer: 27th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Pacific Grove, California, USA
  • Year and Date: 2010-07-14
• [Presentation] Effect of Configuration of Micro-/Nanoscale Structure on Sliding Surface on Molecular Gas-Film Lubrication (2010)
  • Author(s): 磯野晋, 山口雅志, 米村茂, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 27th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Pacific Grove, California, USA.
  • Year and Date: 2010-07-12
• [Presentation] Effect of Configuration of Micro-/Nanoscale Structure on Sliding Surface on Molecular Gas-Film Lubrication (2010)
  • Author(s): Susumu Isono, Masashi Yamaguchi, Shigeru Yonemura, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi
  • Organizer: 27th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Pacific Grove, Califomia, USA
  • Year and Date: 2010-07-12
• [Presentation] Numerical Analysis of Gas Flow in Porous Media with Surface Reaction (2010)
  • Author(s): Ko Tomarikawa, Shigeru Yonemura, Takashi Tokumasu, Tetsuya Koido
  • Organizer: 27th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Pacific Grove, California, USA.
  • Year and Date: 2010-07-11
• [Presentation] Numerical Analysis of Gas Flow in Porous Media with Surface Reaction (2010)
  • Author(s): Ko Tomarikawa, Shigeru Yonemura, Takashi Tokumasu, Tetsuya Koido
  • Organizer: 27th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Pacific Grove, California, USA
  • Year and Date: 2010-07-11
• [Presentation] マイクロ・ナノスケールで現れる気体潤滑機構 (2010)
  • Author(s): 米村茂
  • Organizer: 研究集会「複雑流動現象のダイナミクス」
  • Place of Presentation: 大阪大学(大阪府吹田市)
  • Year and Date: 2010-06-12
• [Presentation] The Dependence of Motion of Atoms on Dissociation Probability of Gas Molecule (2009)
  • Author(s): 徳増崇, 伊藤大吾
  • Organizer: 2nd ASME Micro-Nanoscale Heat & Mass Transfer International Conference (MNHMT09)
  • Place of Presentation: Shanghai, China.
  • Year and Date: 2009-12-20
• [Presentation] The Dependence of Motion of Atoms on Dissociation Probability of Gas Molecule (2009)
  • Author(s): Takashi Tokumasu, Daigo Ito
  • Organizer: 2nd ASME Micro-Nanoscale Heat & Mass Transfer International Conference(MNHMT09)
  • Place of Presentation: 上海(中国)
  • Year and Date: 2009-12-20
• [Presentation] マイクロ・ナノスケールで発現する気体潤滑 (2009)
  • Author(s): 磯野晋, 山口雅志, 米村茂, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 第23回数値流体力学シンポジウム
  • Place of Presentation: 仙台
  • Year and Date: 2009-12-18
• [Presentation] A Gas Lubrication Expressed at the Micro- and Nanoscales (2009)
  • Author(s): 磯野晋, 米村茂, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 10th Workshop on Fine Particle Plasmas
  • Place of Presentation: Toki, Japan.
  • Year and Date: 2009-11-27
• [Presentation] A Gas Lubrication Expressed at the Micro- and Nanoscales (2009)
  • Author(s): S.Isono, S.Yonemura, M.Yamaguchi, T.Takeno, H.Miki, T.Takagi
  • Organizer: 10th Workshop on Fine Particle Plasmas
  • Place of Presentation: 土岐
  • Year and Date: 2009-11-27
• [Presentation] A Molecular Gas-Film Lubrication Expressed in Micro Gas Flow (2009)
  • Author(s): 米村茂, 磯野晋, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: Sixth International Conference on Flow Dynamics
  • Place of Presentation: Sendai, Japan.
  • Year and Date: 2009-11-05
• [Presentation] Mechanism of a Molecular Gas-Film Lubrication of Micro-Structured Surface (2009)
  • Author(s): 米村茂, 磯野晋, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: The Ninth International Symposium on Advanced Fluid Information and Transdiciplinary Fluid Integration
  • Place of Presentation: Sendai, Japan.
  • Year and Date: 2009-11-05
• [Presentation] A Molecular Gas-Film Lubrication Expressed in Micro Gas Flow (2009)
  • Author(s): Shigeru Yonemura, Susumu Isono, Masashi Yamaguchi, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi
  • Organizer: Sixth International Conference on Flow Dynamics
  • Place of Presentation: 仙台
  • Year and Date: 2009-11-05
• [Presentation] Mechanism of a Molecular Gas-Film Lubrication of Micro-Structured Surface (2009)
  • Author(s): Shigeru Yonemura, Susumu Isono, Masashi Yamaguchi, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi
  • Organizer: The Ninth International Symposium on Advanced Fluid Information and Transdiciplinary Fluid Integration
  • Place of Presentation: 仙台
  • Year and Date: 2009-11-05
• [Presentation] Molecular Dynamics Study of the Dissociation of H2/D2 on Pt(111) Including Thermal Motion Compared with Molecular Beam Experiments (2009)
  • Author(s): Tetsuya Koido, Daigo Ito, Takashi Tokumasu, Ko Tomarikawa, Shigeru Yonemura
  • Organizer: 216th ECS Meeting
  • Place of Presentation: Vienna, Austria.
  • Year and Date: 2009-10-06
• [Presentation] Molecular Dynamics Study of the Dissociation of H2/D2 on Pt(111)Including Thermal Motion Compared with Molecular Beam Experiments (2009)
  • Author(s): Tetsuya Koido, Daigo Ito, Takashi Tokumasu, Ko Tomarikawa, Shigeru Yonemura
  • Organizer: 216th ECS Meeting
  • Place of Presentation: ウイーン(オーストリア)
  • Year and Date: 2009-10-06
• [Presentation] マイクロ・ナノスケール微細構造を持つ摺動面における分子気体潤滑に関する研究 (2009)
  • Author(s): 磯野晋, 山口雅志, 米村茂, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 日本機械学会2009年度年次大会
  • Place of Presentation: 盛岡
  • Year and Date: 2009-09-14
• [Presentation] 白金表面上の水素分子解離現象に関する分子論的解析 (2009)
  • Author(s): 徳増崇, 伊藤大吾
  • Organizer: 日本機械学会2009年度年次大会
  • Place of Presentation: 盛岡
  • Year and Date: 2009-09-14
• [Presentation] A Molecular Gas-Film Lubrication of Sliding Surface with Micro/Nano Structure (2008)
  • Author(s): 米村茂, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: Eighth International Symposium on Advanced Fluid Information and Transdiciplinary Fluid Integration
  • Place of Presentation: Sendai, Japan.
  • Year and Date: 2008-12-20
• [Presentation] Molecular Dynamics study on dissociation probability of H2 on Pt(111) surface (2008)
  • Author(s): 伊藤大吾, 徳増崇
  • Organizer: Eighth International Symposium on Advanced Fluid Information and Transdiciplinary Fluid Integration
  • Place of Presentation: Sendai, Japan.
  • Year and Date: 2008-12-20
• [Presentation] A Molecular Gas-Film Lubrication of Sliding Surface with Micro/Nano Structure (2008)
  • Author(s): S. Yonemura, M. Yamaguchi, T. Takeno, H. Miki, and T. Takagi
  • Organizer: Eighth International Symposium on Advaneed Fluid Information and Transdiciplinary Fluid Integration
  • Place of Presentation: 仙台
  • Year and Date: 2008-12-20
• [Presentation] Molecular Dynamics study on dissociation probability of H2 on Pt(111) surface (2008)
  • Author(s): Daigo Ito, Takashi Tokumasu
  • Organizer: Eighth International Symposium on Adva need Fluid Information and Transdiciplinary Fluid Integration
  • Place of Presentation: 仙台
  • Year and Date: 2008-12-20
• [Presentation] Effect of Micro Gas Flow on Tribological Properties of Diamond Coated Surface (2008)
  • Author(s): 米村茂, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 19th European Conference on Diamond, Diamond-Like Materials, Carbon Nanotubes, and Nitrides (Diamond 2008)
  • Place of Presentation: Sitges, Spain.
  • Year and Date: 2008-09-09
• [Presentation] Effect of Micro Gas Flow on Tribological Properties of Diamond Coated Surface (2008)
  • Author(s): S. Yonemura, M. Yamaguchi, T. Takeno, H. Miki, and T. Takagi
  • Organizer: 19th European Conference on Diamond, Diamond-Like Materials, Carbon Nanotubes, and Nitrides (Diamond 2008)
  • Place of Presentation: シッチェス(スペイン)
  • Year and Date: 2008-09-09
• [Presentation] 微細表面構造を持つ摺動面の摩擦特性におけるマイクロ気体流動の影響 (2008)
  • Author(s): 山口雅志, 米村茂, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: 日本機械学会2008年度年次大会
  • Place of Presentation: 横浜
  • Year and Date: 2008-08-04
• [Presentation] 白金表面における水素分子の解離確率に関する分子動力学的研究 (2008)
  • Author(s): 伊藤大吾, 徳増崇
  • Organizer: 日本機械学会2008年度年次大会
  • Place of Presentation: 横浜
  • Year and Date: 2008-08-04
• [Presentation] Effect of Micro Gas Flow on Low Friction Properties of Diamond Coating with Partly Polished Surface (2008)
  • Author(s): 米村茂, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: International Workshop on Molecular Gas Dynamics
  • Place of Presentation: Sendai, Japan.
  • Year and Date: 2008-07-29
• [Presentation] Effect of Micro Gas Flow on Low Friction Properties of Diamond Coating with Partly Polished Surface (2008)
  • Author(s): S. Yonemura, M. Yamaguchi, T. Takeno, H. Miki, and T. Takagi
  • Organizer: International Workshop on Molecular Gas Dynamics
  • Place of Presentation: 仙台
  • Year and Date: 2008-07-29
• [Presentation] Effect of Micro Gas Flow on Low Friction Properties of Diamond Coating with Partly Polished Surface (2008)
  • Author(s): 米村茂, 山口雅志, 竹野貴法, 三木寛之, 高木敏行
  • Organizer: The 26th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 2008-07-22
• [Presentation] Effect of Micro Gas Flow on Low Friction Properties of Diamond Coating with Partly Polished Surface (2008)
  • Author(s): S. Yonemura, M. Yamaguchi, T. Takeno, H. Miki, and T. Takagi
  • Organizer: The 26th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: 京都
  • Year and Date: 2008-07-22