Dynamical Evolution of Wear Particles in Nanocontacts

Anantheshwara, K; Lockwood, AJ; Mishra, Raja K.; Inkson, B. J.; Bobji, M. S.

doi:10.1007/s11249-011-9886-3

Cited by 13 publications

(13 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be seen that the shape of particles highly influences their movement modes which affect tribological mechanisms of DLC films. This keeps consistent with observations in the previous study which stated that the nanoparticle exhibits an optimum shape to realize its rolling27.…”

Section: Resultssupporting

confidence: 93%

See 1 more Smart Citation

Influence of Third Particle on the Tribological Behaviors of Diamond-like Carbon Films

Bai

Srikanth

Kang

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Tribological mechanisms of diamond-like carbon (DLC) films in a sand-dust environment are commonly unclear due to the complicated three-body abrasion caused by sand particles. This study investigates the three-body abrasion of the DLC film via molecular dynamics simulations. The influence factors such as the load, velocity, shape of the particle and its size are considered. It has been found that the friction and wear of the DLC film are determined by adhesion at a small load but dominated by both adhesion and plowing at a large load. A high velocity can increase the friction of the DLC film but decrease its wear, due to the response of its networks to a high strain rate indicated by such velocity. The shape of the particle highly affects its movement mode and thus changes the friction and wear of the DLC film. It is found that a small-sized particle can increase the friction and wear of the DLC film by enhancing plowing. These unique tribological mechanisms of the DLC film can help to promote its wide applications in a sand-dust environment.

show abstract

Section: Resultssupporting

confidence: 93%

“…The ploughing caused by the cuboidal particle actually reflects the properties of the two-body abrasion which cannot be well explained by the mechanisms for spherical and cubic particles. Therefore, it is evident that the shape of the particle can directly determine its movement mode and the friction and wear mechanisms of the DLC films27.…”

Section: Resultsmentioning

confidence: 99%

Influence of Third Particle on the Tribological Behaviors of Diamond-like Carbon Films

Bai

Srikanth

Kang

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…On the other hand, the removal of clusters (distinct from the removal of individual atoms) was proposed to explain the formation of wear particles during contact sliding. 4,23 Which of these are operable and control wear in any specific situation remains a subject of considerable debate.…”

mentioning

confidence: 99%

Large-scale molecular dynamics simulations of wear in diamond-like carbon at the nanoscale

Zhang

Sorkin

Branı́cio

et al. 2013

Applied Physics Letters

View full text Add to dashboard Cite

Study of the fatigue wear behaviors of a tungsten carbide diamond-like carbon coating on 316L stainless steel J. Vac. Sci. Technol. A 30, 051506 (2012); 10.1116/1.4737619 Performance of diamond-like carbon-protected rubber under cyclic friction. I. Influence of substrate viscoelasticity on the depth evolutionWe perform large-scale molecular dynamics simulations on diamond-like carbon to study wear mechanism and law at the nanoscale. Our simulations show that material loss during sliding varies linearly with normal load and sliding distance, consistent with Archard's law. Our simulations also show that the number of chemical bonds across the contact interface during sliding correlates well with friction force, but not with material loss, indicating that friction and wear follow different mechanisms. Our analysis reveals the following wear mechanism: the shear traction causes mass accumulation at the trailing end of contact, which is then lost by a cluster detachment process. V C 2013 AIP Publishing LLC. [http://dx.

show abstract

“…There have been various methods, such as in situ experiment, X-ray diffraction, Raman spectroscopy, and transmission electron microscopy (TEM), to explore the abrasive wear behavior, especially for the three-body abrasion of silicon materials [4,[11][12][13][14][15]. Oliver [16] evaluated various combinations of component factors, such as the size of abrasive particles, type of workpiece, and additives, based on CMP results.…”

Section: Introductionmentioning

confidence: 99%

“…Actually, the abrasive particles in wear systems are not regular spheres for either wear of MEMS or CMP process. Anantheshwara et al [11] stressed the dependence of particle movement pattern, including sliding, rolling, and their combinations occurring, on the particle geometry in nanoscale three-body abrasion. Fang et al [18] assumed an ellipsoidal particle as the first approximation to model real particle contours in three-body abrasion.…”

Section: Introductionmentioning

confidence: 99%

Influence of Abrasive Shape on the Abrasion and Phase Transformation of Monocrystalline Silicon

et al. 2018

View full text Add to dashboard Cite

Abstract:The effect of abrasive shape on the three-body abrasion behaviors of monocrystalline silicon was investigated via molecular dynamics. The axial ratio of abrasive particle varied from 1.00 to 0.40 to mimic abrasive shape. It has been observed that the particle's movement became sliding instead of rolling when the axial ratio was smaller than a critical value 0.46. In the abrasion process, the friction force and normal force showed an approximately sinusoid-like fluctuation for the rolling ellipsoidal particles, while the front cutting of particle caused that friction force increased and became larger than normal force for sliding particles. The phase transformation process was tracked under different particle' movement patterns. The Si-II and Bct5 phase producing in loading process can partially transform to Si-III/Si-XII phase, and backtrack to original crystal silicon under pressure release, which also occurred in the abrasion process. The secondary phase transformation showed difference for particles' rolling and sliding movements after three-body abrasion. The rolling of particle induced the periodical and inhomogeneous deformation of substrates, while the sliding benefited producing high-quality surface in chemical mechanical polishing (CMP) process. This study aimed to construct a more precise model to understand the wear mechanism benefits evaluating the micro-electro-mechanical systems (MEMS) wear and CMP process of crystal materials.

show abstract

Dynamical Evolution of Wear Particles in Nanocontacts

Cited by 13 publications

References 34 publications

Influence of Third Particle on the Tribological Behaviors of Diamond-like Carbon Films

Influence of Third Particle on the Tribological Behaviors of Diamond-like Carbon Films

Large-scale molecular dynamics simulations of wear in diamond-like carbon at the nanoscale

Influence of Abrasive Shape on the Abrasion and Phase Transformation of Monocrystalline Silicon

Contact Info

Product

Resources

About