Effect of environment on the tribological behavior of Si-incorporated diamond-like carbon films

Yang, Seung Ho; Kong, Hosung; Lee, Kwang Ryeol; Park, Sejun; Kim, Dae Eun

doi:10.1016/s0043-1648(01)00856-0

Cited by 79 publications

(27 citation statements)

References 13 publications

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“…On the other hand, the wear of films usually depended on the environment; the film wear in air was clearly larger than that in water. Previously, some researchers have reported that the addition of Si to the DLC film reduced the sensitivity of friction and wear to humidity in the environment [13][14][15][16][17]. The friction behavior of Si-DLC in our study suggests that Si addition does reduce the effect of a water environment on the friction.…”

Section: Discussionsupporting

confidence: 59%

Friction and Wear of Various DLC Films in Water and Air Environments

2004

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Three types of diamond-like carbon (DLC) films, pure DLC, F-containing DLC, and a Si-containing DLC film, were deposited on a WC-Co substrate by a plasma-enhanced CVD technique. Friction and wear properties were determined using a ballon-plate type reciprocating friction tester in water, comparing the water results to those in ambient air. The friction coefficient of DLC and F-DLC films in water was considerably lower than that in air. With Si-DLC, the friction was almost the same level in both water and air, and was less than 0.1. The specific wear rate of films in water was much smaller than that in air and varied around the low level of 10 )8 mm 3 /Nm in water, The mating ball wear was also less than 10 )8 mm 3 /Nm. With DLC and F-DLC films, the transferred amount of material on the friction surface of a mating ball was larger in a water environment than that in air. With a Si-DLC film, the difference in the transferred amount when exposed to either the water or air environment was negligible.

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Section: Discussionsupporting

confidence: 59%

Friction and Wear of Various DLC Films in Water and Air Environments

2004

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“…As the ambient condition encompassed a large percentage of water, hence physisorption of water molecules led to oxidation of DLN surface [28]. Due to this oxidation of the outer most surface, the bonding strength with immediately beneath layer becomes weaker.…”

Section: Wear and Friction Characterizationmentioning

confidence: 99%

A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film

Jana

Das

Gangopadhyay

et al. 2013

Advances in Tribology

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The wear and friction of diamond-like nanocomposite (DLN) film have been investigated in air with different relative humidity (RH), under deionized (DI) water and saline solution. The structure of the film has been characterized by Fourier transform infrared (FTIR), Raman spectroscopy, and scanning electron microscope (SEM). The result shows two interpenetrating network structure: a-C:H and a-Si:O, and they are interpenetrated by Si-C bonding. The tribological performance has been measured using ball-ondisc tribometer with tungsten carbide ball as counterbody at 10 N normal load. Results show that with increasing relative humidity (RH) from 35% to 80%, the coefficient of friction (COF) increases gradually from 0.005 to 0.074, whereas with increasing RH the wear factor decreases from 9.8 × 10 −8 mm 3 /Nm and attains a minimum value of 2.7 × 10 −8 mm 3 /Nm at 50% RH. With further increase of RH the wear factor increases again. Moreover, in DI water and especially in saline solution, both the COF and wear factor have been found to be significantly low. A clue has been interpreted to understand environmental dependency, considering the effect of surface dangling bonds, charge transfer, and chemical interactions.

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“…3 and 4d. However, under humid conditions, the chemical reaction between the film surface and ball surface should be considered to be a main parameter that governs the tribological behavior [17]. Figure 6 shows optical images of the wear scar for DLC films and 10-set alternating-layered films under three humid conditions, dry, 50% and 90% RH.…”

Section: Tribological Behaviors In Various Environmentmentioning

confidence: 99%

Tribological Performance of Alternating-Layered Si-DLC/DLC Films Under Humid Conditions

Kim

Moon

et al. 2009

Tribol Lett

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The tribological behavior of alternating-layered diamond-like carbon (DLC) films was examined under a variety of humid conditions. Alternating deposited layers with Si-incorporated DLC (Si-DLC) and DLC films were prepared using a hybrid coating system. The residual stress of the alternating-layered films was reduced while the hardness was relatively less dependent on the number of alternating-layered sets. A ball-on-disk type tribological test was carried out under the following humid conditions: dry, 50% and 90% relative humidity. The friction coefficient for higher number of alternating-layered sets decreased with increasing humidity conditions but there was no dependency on the wear rate.

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Effect of environment on the tribological behavior of Si-incorporated diamond-like carbon films

Cited by 79 publications

References 13 publications

Friction and Wear of Various DLC Films in Water and Air Environments

Friction and Wear of Various DLC Films in Water and Air Environments

A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film

Tribological Performance of Alternating-Layered Si-DLC/DLC Films Under Humid Conditions

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