2020 Fiscal Year Final Research Report
Development of low friction coefficient film by fine projection
| Project/Area Number |
17K06054
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Fukuyama University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Keywords | コーティング / ナノワイヤ / 摩擦係数 |
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| Outline of Final Research Achievements |
To achieve low friction coefficient without lubrication, fine projections were formed on the coatings. Nano-wires were grown at the interface to form fine projections. The result showed that the delamination strength of the coatings was increased by the projections.
Friction coefficient was influenced by the height of the fine projections, and the minimum friction coefficient was observed when the average height of the projection was around 0.5 micrometer. Density of the nano-wires was one of important factors, and increase in density was achieved by optimizing discharging condition.
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| Free Research Field |
表面設計工学
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| Academic Significance and Societal Importance of the Research Achievements |
新たに開発したナノワイヤは，硬度が高くしかも低コストに形成可能な技術である．しかも脱離に対しても強い．これを応用し，表面微細凹凸を形成した．
微細凹凸による接触面積低減効果により，無潤滑でも低摩擦係数化が可能であることがわかった，開発が完成すれば，従来のボールベアリングを置換することが可能である．
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