Establishment of Theoretical Basis on Running-in and Seizure Based on Quantum Chemistry for Super-low Friction Technology Development
| Project/Area Number |
26249011
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Tohoku University |
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Principal Investigator |
Kubo Momoji 東北大学, 金属材料研究所, 教授 (90241538)
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| Co-Investigator(Kenkyū-buntansha) |
足立 幸志 東北大学, 工学(系)研究科(研究院), 教授 (10222621)
樋口 祐次 東北大学, 金属材料研究所, 助教 (30613260)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥32,240,000 (Direct Cost: ¥24,800,000、Indirect Cost: ¥7,440,000)
Fiscal Year 2016: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2014: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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| Keywords | 超低摩擦 / 量子化学 / トライボロジー / なじみ / 焼付き |
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| Outline of Final Research Achievements |
By using tribochemial reaction simulators based on our developed first-principles and tight-binding quantum chemical molecular dynamics methods, the mechanisms of running-in and seizure on various lubricating films were elucidated and the prevention method of seizure was successfully proposed. We also clarified that tribochemical reactions strongly depend on the lubricating films. Furthermore, we successfully developed a new tribochemical reaction simulator based on ReaxFF molecular dynamics method for larger system. Clarified running-in and seizure phenomena by our simulations were good agreement with the experimental observations and then the accuracy of the simulation methodologies is verified. Furthermore, wear phenomena after the running-in and seizure were also clarified by our simulations and we successfully proposed the prevention method of wear. Finally we concluded that these outcomes are more than planned results.
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Report
(4 results)
Research Products
(48 results)
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[Journal Article] Diamond-Like Carbon Coating under Oleic Acid Lubrication: Evidence for Graphene Oxide Formation in Superlow Friction2017
Author(s)
M. I. De Barros Bouchet, J. M. Martin, J. Avila, M. Kano, K. Yoshida, T. Tsuruda, S. Bai, Y. Higuchi, N. Ozawa, M. Kubo, and M. C. Asensio
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Journal Title
Sci. Rep.
Volume: 7
Issue: 1
Pages: 46394-46394
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Tribo-Chemical Reaction of Molybdenum Dithiocarbamate on Diamond-like Carbon Films: Quantum Chemical Molecular Dynamics Simulation2014
Author(s)
H. Murabayashi, T. Tsuruda, Y. Wang, Y. Kobayashi, S. Bai, Y. Higuchi, N. Ozawa, K. Adachi, and M. Kubo
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Journal Title
Journal of Computer Chemistry, Japan
Volume: 13
Issue: 3
Pages: 177-178
DOI
NAID
ISSN
1347-1767, 1347-3824
Related Report
Peer Reviewed
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[Presentation] トライボロジーシミュレーション2014
Author(s)
久保百司
Organizer
グリーントライボ・ネットワーク夏の学校2014
Place of Presentation
東北大学電気通信研究所ナノスピン棟
Year and Date
2014-07-14 – 2014-07-15
Related Report
Invited
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