Friction from nano to macroforce scales analyzed by single and multiple-asperity contact approaches

Achanta, Satish; Drees, Dirk; Célis, Jean-Pierre

doi:10.1016/j.surfcoat.2008.07.020

Cited by 20 publications

(11 citation statements)

References 20 publications

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“…Because of the developments and applications of characterization tools, such as atomic force microscopy (AFM) and lateral force microscopy (LFM), many studies have been performed on friction and wear mechanisms at the nanoscale. − For example, Chung et al investigated nanoscale sliding using tetrahedral amorphous carbon (ta-C) and characterized wear via AFM. It was found that debris derived from plastic material flow along the sliding track and were able to form agglomerated particles, a phenomenon similar to the macroscopic behavior.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Chemistry on the Mechanisms and Governing Laws of Friction and Wear

Lian

Sorkin

Zhang

2016

ACS Appl. Mater. Interfaces

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Recent studies have shown that interface chemistry, that is, the formation and breaking of chemical bonds across contacting interfaces, is closely related to the wear and friction behavior at the nanoscale. In reality, the dangling bond density (DBD) at contacting surfaces can vary greatly. Currently, it remains unclear how friction and wear mechanisms depend on DBDs and whether the Archard's law for wear and Amonton's law for friction are still applicable for contacting surfaces with different DBDs. In this work, we address these issues by studying the wear and friction behavior between two sliding diamond-like carbon surfaces by controlling DBDs via hydrogenation using molecular dynamics simulations. It is found that the chemical bond breaking and remaking across the contacting interface play the key role in determining the friction and wear behavior. During the sliding, a higher DBD leads to more chemical bond formations across the interface, causing stronger wear via either atom or cluster detachments. With the same DBD, a mechanism transition from an atom-by-atom to cluster detachments is observed by increasing the normal load. Remarkably, a fully saturated surface can exhibit a wearless friction. We further show that after necessary modifications, the Archard's law for wear and the Amonton's law for friction may be applicable at the nanoscale. The present work reveals insights into the effect of interface chemistry on the friction and wear, and it provides guidelines for effective antiwear design.

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Section: Introductionmentioning

confidence: 99%

Effect of Surface Chemistry on the Mechanisms and Governing Laws of Friction and Wear

Lian

Sorkin

Zhang

2016

ACS Appl. Mater. Interfaces

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“…3 (Table I). having three tips located at (x 1 , y 1 ), (x 2 , y 2 ), and (x 3 , y 3 ), and a normal force P acting at the location (x 0 , y 0 ). The reaction forces F 1 , F 2 , and F 3 of the 3 plate tips can be written Equation (13) shows that in general the force acting on each plate tip is not the same, although special cases can be constructed ( Fig. 9(b)).…”

Section: Resultsmentioning

confidence: 99%

“…There is a notable gap between nano-tribometer and AFM instrumentation in this force range. 11,13 Also noteworthy is the similarity with AFM experiments that manipulate nanoparticles or nano-scale islands. 14,15 These studies use the AFM tip to move a nano-island on a surface and the associated friction is measured by the twisting of the AFM cantilever as the tip encounters the edge of the nanoisland.…”

Section: Introductionmentioning

confidence: 83%

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Friction measurement on free standing plates using atomic force microscopy

Tang

Loke

Lü

et al. 2013

Review of Scientific Instruments

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A method is introduced to measure friction on small, free standing objects, specifically microfabricated silicon plates, based on atomic force microscopy (AFM). An AFM tip is brought into contact with the plate resting on a substrate. The substrate is displaced laterally and, provided the AFM tip does not slide over the plate, the twisting of the AFM cantilever is used to measure the friction of the underlying plate-substrate interface. The method can measure nano-Newton to micro-Newton forces (both friction and applied load) and provides a means to measure friction of macroscopic structures at low load.

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“…For contemporary experiments, the friction measurement at nanoscale is based on the development of the Tomlinson’s model [ 33 , 34 , 35 , 36 ]. Since the late 80s, AFM (FFM) as a new experimental technique has been widely applied to the determination of friction at nanoscale [ 37 , 38 , 39 , 40 , 41 ].…”

Section: Mechanism Of Friction Mechanics and Measurement Principlementioning

confidence: 99%

Friction Determination by Atomic Force Microscopy in Field of Biochemical Science

Wang

2018

Micromachines

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Atomic force microscopy (AFM) is an analytical nanotechnology in friction determination between microscale and nanoscale surfaces. AFM has advantages in mechanical measurement, including high sensitivity, resolution, accuracy, and simplicity of operation. This paper will introduce the principles of mechanical measurement by using AFM and reviewing the progress of AFM methods in determining frictions in the field of biochemical science over the past decade. While three friction measurement assays—friction morphology, friction curve and friction process in experimental cases—are mainly introduced, important advances of technology, facilitating future development of AFM are also discussed. In addition to the principles and advances, the authors also give an overview of the shortcomings and restrictions of current AFM methods, and propose potential directions of AFM techniques by combining it with other well-established characterization techniques. AFM methods are expected to see an increase in development and attract wide attention in scientific research.

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Friction from nano to macroforce scales analyzed by single and multiple-asperity contact approaches

Cited by 20 publications

References 20 publications

Effect of Surface Chemistry on the Mechanisms and Governing Laws of Friction and Wear

Effect of Surface Chemistry on the Mechanisms and Governing Laws of Friction and Wear

Friction measurement on free standing plates using atomic force microscopy

Friction Determination by Atomic Force Microscopy in Field of Biochemical Science

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