2013 Fiscal Year Final Research Report
Multilateral measurement of phenomena of thin lubrication with a nm-thick lubricant film
| Project/Area Number |
23246031
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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 | Nagoya University |
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Principal Investigator |
FUKUZAWA Kenji 名古屋大学, 工学(系)研究科(研究院), 教授 (60324448)
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| Co-Investigator(Kenkyū-buntansha) |
ITOH Shintaro 名古屋大学, 大学院工学研究科, 講師 (50377826)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 潤滑 / マイクロ・ナノトライボロジー / 粘弾性計測 / 極微量潤滑 / 水晶振動子 / エリプソメトリー顕微鏡 / ハードディスク / マイクロマシン |
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| Research Abstract |
Thin film lubrication, where lubricant film is applied only to the sliding point, is expected to be lubrication technology for micro machines such as hard disk drives. However, the lubrication phenomenon has not been fully quantified due to the difficulty of measurement. In this study, we aimed at building a method that simultaneously measures the lateral and normal forces generated by lubricant and deformation of lubricant films and obtaining fundamental knowledge for construction of theory of the thin film lubrication. For measurements of lateral and normal forces, we developed optical-fiber-probe based and quartz-tuning-fork based methods, respectively. Moreover, two stage imaging ellipsometric microscopy was developed for visualization of the film deformation. These measurement method revealed important phenomena for construction of thin film lubrication theory, which are different from those in conventional lubrication.
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