2017 Fiscal Year Final Research Report
Analyses of stress between incontacting bodies due to intermolecular force and its application to ultra-high density magnetic recording in the next generation
| Project/Area Number |
15K05764
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 | Tottori University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
福井 茂壽 鳥取大学, 工学研究科, 特任教授 (40273883)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 表面間力 / 応力分布 / 非接触状態の応力分布 / 材料分布によるせん断応力 / 材料分布による表面間力の変化 |
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| Outline of Final Research Achievements |
(1)A method of driving the normal and shear stresses under the non-contact condition has been established considering one-dimensional material distributions in the in-plane direction based on the Lennard-Jones potential. (2)Based on the above one-dimensional calculation, the stresses for periodical two-dimensional material distribution have been successfully derived. (3)Stress distributions between a sphere and a plane have been calculated and the basic characteristics were clarified. (4)Using a surface force tester, the surface forces between a sphere and a plane were measured with an ultra-high resolution. The effects of surface roughness has been clarified. (5)Flying characteristics of a magnetic head slider were analyzed considering the surface forces. The effects of temperature distribution and accommodation coefficients of boundaries were clarified.
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| Free Research Field |
トライボロジー
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