In situ observation of nano-abrasive wear

Ribeiro, Rahul; Shan, Zhiwei; Minor, Andrew M.; Liang, Hong

doi:10.1016/j.wear.2006.10.026

Cited by 30 publications

(17 citation statements)

References 24 publications

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“…Incorporating scanning probes into TEM has the potential to provide dramatic new insights into the structure of nanocontacts as they form and slide. For example, Riebeiro et al [91] used a diamond indenter coated with Au to slide against the (1 0 0) surface of Si. By using in situ TEM imaging, it was determined that the abrasive wear was initiated by cracks nucleating and propagating along the elastic strain contour formed by the indenter.…”

Section: Scanning Force Microscopymentioning

confidence: 99%

“…Recently, the development of in situ TEM nanoindenters, discussed briefly in section 2.1, has created an exciting opportunity for understanding wear phenomena at the nanoscale. Ribeiro et al [91] used this in situ technique to directly observe abrasive nanoscale wear of a Si substrate probed with a gold-coated diamond indenter.…”

Section: Atomic Scale Wear Phenomenamentioning

confidence: 99%

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Recent advances in single-asperity nanotribology

Szlufarska

Chandross

Carpick

2008

J. Phys. D: Appl. Phys.

412

353

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As the size of electronic and mechanical devices shrinks to the nanometre regime, performance begins to be dominated by surface forces. For example, friction, wear and adhesion are known to be central challenges in the design of reliable micro-and nano-electromechanical systems (MEMS/NEMS). Because of the complexity of the physical and chemical mechanisms underlying atomic-level tribology, it is still not possible to accurately and reliably predict the response when two surfaces come into contact at the nanoscale. Fundamental scientific studies are the means by which these insights may be gained. We review recent advances in the experimental, theoretical and computational studies of nanotribology. In particular, we focus on the latest developments in atomic force microscopy and molecular dynamics simulations and their application to the study of single-asperity contact.

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Section: Scanning Force Microscopymentioning

confidence: 99%

Section: Atomic Scale Wear Phenomenamentioning

confidence: 99%

Recent advances in single-asperity nanotribology

Szlufarska

Chandross

Carpick

2008

J. Phys. D: Appl. Phys.

412

353

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“…Thus, it is essential to understand the wear or scratch behavior of glass in various environmental conditions. Generally, the friction and wear of materials depend on their mechanical properties (elastic modulus and hardness) and structural defects (dislocations or microcracks) [8][9][10][11]. In ambient air, they also depend on mechanochemical reactions involving adsorbed molecules impinging from the gas phase [12,13].…”

Section: Introductionmentioning

confidence: 99%

Effects of humidity and counter-surface on tribochemical wear of soda-lime-silica glass

Qian

Pantano

et al. 2015

Wear

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a b s t r a c tThe effects of counter-surface chemistry on the friction and wear of soda-lime-silica glass were investigated using a ball-on-flat tribometer with various ball materials (stainless steel, silicon nitride, and alumina) in dry and humid environments. It was found that the interfacial wear was very sensitive to environmental humidity and counter-surface chemistry. In dry conditions, soda-lime glass was damaged mechanically regardless of counter-surface materials, creating a rough and deep wear track. These results were consistent with the Archard relationship-a softer material would wear mechanically by a harder material. However, in humid conditions, the ball materials that were harder than the soda-lime glass were damaged. Thus, the wear of glass interfaces under humid conditions does not follow the Archard relationship. These results clearly show that the tribochemical reactions involving the substrate and counter-surface chemistry as well as the adsorbed water molecules are determining factors governing wear behaviors in humid environments.

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“…Hence, the macroscopic laws of friction and wear generally do not apply to nanoscale contacts [6][7][8][9][10][11][12]. Some specific experimental evidence on the mechanisms of nanotribology has been recently emerging from careful experiments [13][14][15][16][17][18][19][20][21][22]. In situ TEM experiments have enabled direct observation of atomic scale wear [16], abrasive wear [17], abrasion of amorphous carbon films [18], gold contacts [19], recrystallisation [20] and interaction of a nanoparticle during nanoscale sliding experiments [21].…”

Section: Introductionmentioning

confidence: 99%

Dynamical Evolution of Wear Particles in Nanocontacts

et al. 2011

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Nanoscale surface modification, by the interaction of sliding surfaces and mobile nanoparticles, is a critical parameter for controlling friction, wear and failure of surface structures. Here we demonstrate how nanoparticles form and interact in real-time at moving nanocontacts, with reciprocating wear tests imaged in situ at the nanoscale over [300 cycles in a transmission electron microscope. Between sliding surfaces, friction-formed nanoparticles are observed with rolling, sliding and spinning motions, dependant on localised contact conditions and particle geometry. Over periods of many scratch cycles, nanoparticles dynamically agglomerate into elongated clusters, and dissociate into smaller particulates. We also show that the onset of rolling motion of these particles accompanies a reduction in measured friction. Introduction of nanoparticles with optimum shape and property can thus be used to control friction and wear in microdevices.

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In situ observation of nano-abrasive wear

Cited by 30 publications

References 24 publications

Recent advances in single-asperity nanotribology

Recent advances in single-asperity nanotribology

Effects of humidity and counter-surface on tribochemical wear of soda-lime-silica glass

Dynamical Evolution of Wear Particles in Nanocontacts

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