| Budget Amount *help |
¥42,770,000 (Direct Cost: ¥32,900,000、Indirect Cost: ¥9,870,000)
Fiscal Year 2013: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2012: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2011: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
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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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