Small amplitude reciprocating wear performance of diamond-like carbon films: dependence of film composition and counterface material

Bares, Jason A.; Sumant, Anirudha V.; Grierson, David S.; Carpick, Robert W.; Sridharan, Kumar

doi:10.1007/s11249-007-9209-x

Cited by 18 publications

(24 citation statements)

References 59 publications

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“…Since the simulations demonstrate that N lost is linearly proportional to both the sliding distance d and the normal load T n , it is consistent with Archard's law; this implies that Archard's law is directly applicable at the nanoscale, contrary to common understanding. 16,[19][20][21] We note that some previous experimental studies showed non-linearity of material loss with either sliding distance or force. 16,19 This difference may be attributed to the following factors.…”

mentioning

confidence: 62%

“…6 Consequently, most theories of the material removal process have been developed in the absence of direct knowledge of the interface structure and dynamics. For example, atom-byatom attrition 16,19 governed by thermally activated bond breaking 16,[20][21][22] was proposed to explain material loss during wear. 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.…”

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confidence: 99%

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

Zhang

Sorkin

Branı́cio

et al. 2013

Applied Physics Letters

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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.

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confidence: 62%

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

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“…Each tribometer will run clockwise for 30 s and then counterclockwise for 30 with voltage zeroing at the beginning and end of each experiment as the Si atoms increase the tetrahedral bonding character within the film, and the high oxygen content stabilizes the film against further oxidative degradation. Macro-and nanoscale studies of SiO-doped DLC have demonstrated these desired property improvements [31][32][33] including through previous space exposure tests [34].…”

Section: Materials Selectionmentioning

confidence: 99%

Space Tribometers: Design for Exposed Experiments on Orbit

Krick

Sawyer

2010

Tribol Lett

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Eight pin-on-disk tribometers have been made for testing materials in space on board the International Space Station. They will be exposed directly to the low earth orbit (LEO) environment on board the ''Materials on the International Space Station Experiments'' platform where they will experience extreme conditions including atomic oxygen, ultrahigh vacuum, radiation (including UV radiation), and thermal ranges from -40 to 60°C. In order to survive launch and LEO, these tribometers were designed to be extremely compact, rugged, and reliable. Pin-on-disk tribology experiments are now being performed with a 13.2 mm/s sliding velocity (14 RPM at 9 mm wear track radius) and a 1 N normal load with hemispherical pin of 1.5875 mm radius. Materials tested include MoS 2 /Sb 2 O 3 /Au, MoS 2 /Sb 2 O 3 /C, YSZ/Au/MoS 2 / DLC, and SiO-doped DLC coatings, and bulk samples of polytetrafluoroethylene (PTFE) alumina nanocomposites and gold.

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“…The films had an intended thickness of 20 nm based on known growth rates of the DLC using this process. The PIIID process is non-line-of-sight in nature and allows for uniform coating of complex 3D geometries [8].…”

Section: Dlc Coatingmentioning

confidence: 99%

Assessment of the mechanical integrity of silicon and diamond-like-carbon coated silicon atomic force microscope probes

et al. 2010

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The wear of atomic force microscope (AFM) tips is a critical issue in the performance of probe-based metrology and nanomanufacturing processes. In this work, diamond-like carbon (DLC) was coated on Si AFM tips using a plasma ion implantation and deposition process. The mechanical integrity of these DLC-coated tips was compared to that of uncoated silicon tips through systematic nanoscale wear testing over scan distances up to 0.5 meters. The wear tests consisted of a combination of contact-mode AFM scanning, transmission electron microscopy, and pull-off force measurements. Power spectral density analysis of AFM measurements acquired on structured samples was used to evaluate the imaging performance of the tips. The results show that Si tips are prone to catastrophic failure in self-mated contacts under typical scanning conditions. In contrast, DLC-coated tips demonstrate little to no measurable wear under adhesive forces alone, and exhibit stress-dependent gradual wear under external loads of ~22 and 43 nN.

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Small amplitude reciprocating wear performance of diamond-like carbon films: dependence of film composition and counterface material

Cited by 18 publications

References 59 publications

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

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

Space Tribometers: Design for Exposed Experiments on Orbit

Assessment of the mechanical integrity of silicon and diamond-like-carbon coated silicon atomic force microscope probes

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