| Project/Area Number |
22560140
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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 | Gifu University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 摩擦 / トライボロジー / 超潤滑 / エネルギー散逸機構 / ナノトライボロジー / 散逸機構 / 摩擦の起源 / 摩擦の原子論 / 摩擦転移 / 表面 / 界面 |
|---|
| Research Abstract |
The total energy of contacting surfaces is invariant for sliding distance Q, resulting in vanishing frictional force. The increase in interfacial interactions, on the other hand, leads to the discontinuous motion of constituent atoms, resulting in the appearance of friction. We, thus, see the frictional force changes from vanishing to finite due to increased interfacial interactions. This is called friction transition. It has been examined that the occurrence of the friction transition by deriving its condition in various inter-metallic systems by using pair-wise inter-atomic potentials. The related experiment has been done for the frictional system of W(011) tips and Si(001) clean surfaces, and it has been conclude that the friction transition has not occurred in the frictional system. This study theoretically has clarified whether or not the friction transition occurs in the frictional systems by taking into account of many-body inter-atomic potentials.
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