2010 Fiscal Year Final Research Report
A study on lubrication technology for future magnetic disks using a lubricant flow in a small gap
| Project/Area Number |
20560138
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Waseda University |
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Principal Investigator |
YANAGISAWA Masahiro Waseda University, 理工学術院, 研究員 (20421224)
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| Co-Investigator(Kenkyū-buntansha) |
HOMMA Takayuki 早稲田大学, 理工学術院, 教授 (80238823)
SUGIYAMA Atsushi 早稲田大学, 高等研究所, 準教授 (90386631)
YOSHINO Masahiro 早稲田大学, 理工学術院, 講師 (90454107)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 磁気ディスク / 潤滑技術 / 流体 / 薄膜 |
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| Research Abstract |
We proposed a lubricant reserver system in which lubricants supplied from a small gap between a hub and a disk plate to disk surfaces. A flow of Perfluorinated Polyether (PFPE) lubricant was examined with cylindrical lens which enable to prepare nanometer scale gaps. As a result, the flow rate parabolically decreases with the decreased gap. Further, it was found that the PFPE lubricant molecule adsorbed on a substrate surface at a functional group, phosphazene, in the molecule with a Surface Enhanced Raman Scattering (SERS) technique.
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