2011 Fiscal Year Final Research Report
Clarification of conditions for ultra-low friction
| Project/Area Number |
21560160
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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 | Tokyo University of Agriculture and Technology (2010-2011)
National Institute of Advanced Industrial Science and Technology (2009) |
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Principal Investigator |
ANDO Yasuhisa 東京農工大学, 大学院・工学研究院, 教授 (00344169)
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| Co-Investigator(Renkei-kenkyūsha) |
HIRATSUKA Ken' ichi 千葉工業大学, 工学部, 教授 (30181168)
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| Project Period (FY) |
2009 – 2011
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| Keywords | トライボロジー |
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| Research Abstract |
The friction coefficients of different metal pairs are determined by the difference in the interatomic distance between each metal material under low load conditions. Here, eight types of metal pins were rubbed against Si(111) substrates that were covered with a native oxide film. Results showed that the friction coefficient increased when the interatomic distance of the metal approached the interatomic distance of SiO_2. A similar relationship was found between pairs of Ag/Cu/Ni and Au/Pt/Si(100). The combination of Au(111) and Si(111) exhibited clear friction anisotropy, which confirmed the above-mentioned relationship that was determined by interaction between the crystal structures.
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Research Products
(8 results)
