1997 Fiscal Year Final Research Report Summary
Study on the layring phenomenon of ultra-thin hydrodynamic lubrication film
| Project/Area Number |
08455078
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
設計工学・機械要素・トライボロジー
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KATO Takahisa The University of Tokyo, Assoc.Professor, 大学院・工学系研究科, 助教授 (60152716)
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| Co-Investigator(Kenkyū-buntansha) |
FUKUDA Katsumi The University of Tokyo, Assistant, 大学院・工学系研究科, 助手 (20134471)
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| Project Period (FY) |
1996 – 1997
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| Keywords | Molecular layring / Tribology / Elasthydrodynamic lubrication / Ultra thin liquid film / Surface force |
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| Research Abstract |
Film thickness of the order of several nanometers is measured by using a precise experimental setup in which two molecularly smooth mica surfaces in crossed cylinder configuration are slide past each other with three kinds of liquid between the surfaces. It is shown that the film thickness depends on liquid structure and the film is thickened when intervening liquid exhibits a strong solvent structural force. A new EHL theory which considers deformation due to the structural force is introduced and results of the calculation are shown.
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