Study on the Frictional Characteristics of Micro-particles for Tribological Application
- Study on the Frictional Characteristics of Micro-particles for Tribological Application
- 성인하; 한흥구; 공호성
- atomic-scale stick-slip friction; colloidal probe; lateral contact stiffness
- Issue Date
- 한국윤활학회지; Journal of the KSTLE (Journal of the Korean Society of Tribologists and Lubrication Engineers)
- VOL 25, NO 2, 81-85
- Interests in micro/nano-particles have been greatly increasing due to their wide applications in various
fields such as environmental and medical sciences as well as engineering. In order to obtain a fundamental
understanding of the tribological characteristics at particle-surface contact interface, frictional behaviors according
to load/pressure and materials were obtained by using atomic force microscope (AFM) cantilevers with different
stiffnesses and tips. Lateral contact stiffnesses were observed in various tip-surface contact situations.
Experimental results show that stick-slip friction behavior occurs even when the colloidal probes with a particle
of a few micrometers in diameter, which have a relatively large contact area and lack a well-shaped apex, were
used. This indicates that atomic stick-slip friction may be a more common phenomenon than it is currently
thought to be. Also, experimental results were investigated by considering the competition between the stiffness
of the interatomic potential across the interface and the elastic stiffnesses of the contacting materials and the force
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.