The study of the effect of waiting time, loading and unloading on static and kinetic friction for real contact micro-systems was carried out. Three types of silicone fluid with the viscosity of 100, 450 and 5000 cSt at 25° C were used. Stop-start experiments allowed us to estimate the relaxation time after the static friction overshoot. For silicone liquid with viscosity of 100 cSt, relaxation of friction force (F) after the static friction overshoot occurred over one cycle of testing. Relaxation of F for fluids with the viscosity of 450 and 5000 cSt occurred during a long time and this effect was opposite for these silicone liquids. The analysis of loading-unloading cycles showed only a partial reversibility of F. The results were compared with static friction and stick-slip data obtained in other works, using SFA and FFM techniques. In order to explain the effect of viscosity and structure of the lubricant layers on stick-slip phenomenon, interior and wall slip of the lubricant film is discussed.
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World Tribology Congress III
September 12–16, 2005
Washington, D.C., USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4201-0
PROCEEDINGS PAPER
Static and Kinetic Friction of Smooth Glass Surfaces Rubbed With Silicone Oils
L. Rapoport,
L. Rapoport
Holon Institute of Technology, Holon, Israel
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V. Shmukler,
V. Shmukler
Holon Institute of Technology, Holon, Israel
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A. Moshkovich,
A. Moshkovich
Holon Institute of Technology, Holon, Israel
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A. Verdyan
A. Verdyan
Holon Institute of Technology, Holon, Israel
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L. Rapoport
Holon Institute of Technology, Holon, Israel
V. Shmukler
Holon Institute of Technology, Holon, Israel
A. Moshkovich
Holon Institute of Technology, Holon, Israel
A. Verdyan
Holon Institute of Technology, Holon, Israel
Paper No:
WTC2005-63174, pp. 445-446; 2 pages
Published Online:
November 17, 2008
Citation
Rapoport, L, Shmukler, V, Moshkovich, A, & Verdyan, A. "Static and Kinetic Friction of Smooth Glass Surfaces Rubbed With Silicone Oils." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 1. Washington, D.C., USA. September 12–16, 2005. pp. 445-446. ASME. https://doi.org/10.1115/WTC2005-63174
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