| Project/Area Number |
03805012
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
機械工作
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| Research Institution | YAMANASHI UNIVERSITY |
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Principal Investigator |
OKADA Katsuzo YAMANASHI UNIVERSITY,FACULTY OF ENGINEERING, 工学部, 教授 (50020409)
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| Project Period (FY) |
1991 – 1992
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| Project Status |
Completed (Fiscal Year 1992)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1992: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1991: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Tribology / Friction / Wear / Lubrication / Solid Lubrication / Vacuum / Composites / Diamond |
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| Research Abstract |
Research in 1991 In order to study the relationship between sliding friction and contact areas, the relationship between the maximum friction coefficient which is obtained by sliding a thin, flat Al plate on a flat Ni plate. The apparent Al area of contact was examined using a microscopic tilt device which can accurately determine the start of the sliding on an object.The results obtained are as follows: (1) The coefficient of the maximum static friction increases as the apparent area of contact becomes smaller. (2) When apparent area of contact does not change, the coefficient of maximum static friction in creases in proportion to the circumference of the contact area.
Research in 1992 Al base composites containing cluster diamonds have been tested on their friction properties in the air, and in a vacuum. Pin on disk friction tester was used. The main results obtained are as follows; (1) Friction coefficient obtained in the air is smaller than in a vacuum. (2) Friction coefficient decreases as diamond contents of composites increases.
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