The influence of roughness on friction

Meine, K.; Schneider, Thomas; Spaltmann, D.; Santner, E.

doi:10.1016/s0043-1648(02)00160-6

Cited by 26 publications

(9 citation statements)

References 2 publications

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“…Similar dependence of m s on contact pressure was also observed for lubricated, rough rolling/sliding between metallic contact surfaces [23].…”

Section: Effect Of Surface Roughness and Contact Load On Surface Fricsupporting

confidence: 75%

“…Although extensive research has been undertaken to uncover the relationship between friction and tribology [14][15][16][17][18][19][20][21][22][23][24][25][26][27], the findings have not led any definitive conclusions even for metals. Although a similar concept for metals can also be used for investigating friction in polymers, the physical and mechanical properties of polymers are more complex and bring more challenges.…”

Section: Introductionmentioning

confidence: 99%

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Influence of surface roughness and contact load on friction coefficient and scratch behavior of thermoplastic olefins

Jiang

Browning

Fincher

et al. 2008

Applied Surface Science

111

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“…Similar dependence of m s on contact pressure was also observed for lubricated, rough rolling/sliding between metallic contact surfaces [23].…”

Section: Effect Of Surface Roughness and Contact Load On Surface Fricsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Influence of surface roughness and contact load on friction coefficient and scratch behavior of thermoplastic olefins

Jiang

Browning

Fincher

et al. 2008

Applied Surface Science

111

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“…Artificially constructed obstacles having a height of 160 nm and a frictional response were studied for a single step obstacle 17 and then a multistep obstacle with a step distance ranging from 100 to 0.1 lm. 18 It was concluded that there is a direct dependency of the frictional force on the roughness: the friction increased with an increasing number of asperities inside the contact area. As this system is dominated by elastic deformation, it could nevertheless be different if adhesion were to affect the frictional force.…”

Section: Introductionmentioning

confidence: 99%

The friction coefficient on polycarbonate as a function of the contact pressure and nanoscale roughness

Rubin

Gauthier

Schirrer

2012

J Polym Sci B Polym Phys

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During dry friction the rheological behavior at the interface between a polymer surface and a rigid indenter is linked to the local pressure and the roughness of the surface of the indenter. This study on polycarbonate reports experimental results obtained at ambient temperature using rigid, spherical glass indenters of various radii. In a first step, a plot of the experimental friction coefficient l versus the mean contact pressure p mean showed that below the yield stress (p mean < 100 MPa) the intrinsic friction coefficient follows a master curve for smooth indenters. In a second step, roughened indenters were prepared by chemical etching, which allowed the monitoring of nanoscale roughness parameters. From 5.5 to 140 nm Rrms, the friction coefficient l progressively fell to a plastic-like constant value, indicating that the nanoroughness mediates the friction. These results form the basis for a study of the rheology of confined polymer layers. V C 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 50: 580-588, 2012

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“…I. Etsion et al (20) studied nano-scale fretting wear caused by gross slip using scanning probe microscopy (SPM), and they mentioned that the results of nano-wear show substantially more friction than partial gross slip and a significant difference between the damaged surfaces under the two fretting regimes. K. Meine et al (21) mentioned that friction force increases with an increase in the number of asperities inside the contact area. From Figs.…”

Section: Comparison Of Surface Conditions Of the Glass Spheres Withmentioning

confidence: 99%

Surface Forces related to the Accumulation and Dispersion of Dust due to the Locomotion of a Cantilever

Choi

Horie

Ando

2008

JAMDSM

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Since surface forces prevent micro-machines from moving in the air, there are a lot of difficult problems to be solved concerning the reliability of micro-machines. Surface forces depend strongly on dust and contaminants. Therefore, we should be considering the attachment and detachment of micro-applications between interactive contact surfaces related to the locomotion of micro-machines. We observed that dusts have effects upon contact surface forces via the locomotion of cantilever in the air. First, we made a stainless steel cantilever with a glass sphere (dry borosilicate glass sphere, curvature radius: R=10µm) glued on top. In addition, we created an asperity array at the micro-sphere's surfaces on the stainless steel cantilever using an FIB (Focused Ion Beam). The experiment was performed using an AFM (Atomic Force Microscope). From the results, we found out that contact surface forces are influenced remarkably by dust debris in the air. The spheres with asperity arrays tend to hinder the accumulation of dust than the spheres without asperity arrays in abrading work using the same normal spring constant (=k n ) of the cantilever. Moreover, among the cases with non-asperity arrays, the accumulation of dust on the sphere's surface is lower in the thin cantilever than the wide cantilever. To prevent contact surface forces from increasing by the accumulation of contaminants, micro-machines must have locomotion and asperity arrays on any surface that comes in contact with severe natural conditions.

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The influence of roughness on friction

Cited by 26 publications

References 2 publications

Influence of surface roughness and contact load on friction coefficient and scratch behavior of thermoplastic olefins

Influence of surface roughness and contact load on friction coefficient and scratch behavior of thermoplastic olefins

The friction coefficient on polycarbonate as a function of the contact pressure and nanoscale roughness

Surface Forces related to the Accumulation and Dispersion of Dust due to the Locomotion of a Cantilever

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