<I>In-situ</I> Observation of Shear Deformation of Gold Single Real Contact Point at the Nanoscale
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- Ishida Tadashi
- Center for International Research on Micronano Mechatronics, Institute of Industrial Science, University of Tokyo
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- Sato Takaaki
- Center for International Research on Micronano Mechatronics, Institute of Industrial Science, University of Tokyo
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- Fujita Hiroyuki
- Center for International Research on Micronano Mechatronics, Institute of Industrial Science, University of Tokyo
Bibliographic Information
- Other Title
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- In-situ Observation of Shear Deformation of Gold Single Real Contact Point at the Nanoscale
Abstract
We in-situ observed the deformation of a gold single real contact point at the nanoscale during friction experiment in order to reveal the mechanism of friction. In this experiment, a special experimental setup combining between micro-electro-mechanical system (MEMS) and transmission electron microscope (TEM), called MEMS-in-TEM, was utilized for the stable visualization of the real contact point. Gold tips with electrostatic actuators were gently brought into contact and were rubbed each other at a quasi-static speed under TEM observation. Between tips, the gold single real contact point was formed and deformed in shear. During this deformation, the ends of the real contact point travelled 2.8 nm along the surface of the gold tips, although those of silicon and silver did not move. The maximum friction was 60 nN, repeating the stick-slip behavior from 35 to 60 nN. This result will be helpful to understand the mechanism of friction at the nanoscale and the lubrication mechanism of solid lubricants.
Journal
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- Tribology Online
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Tribology Online 7 (3), 127-131, 2012
Japanese Society of Tribologists
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Keywords
Details 詳細情報について
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- CRID
- 1390282680247167488
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- NII Article ID
- 130002099853
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- ISSN
- 18812198
- 1881218X
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
