Effect of the type of elastomeric substrate on the microstructural, surface and tribological characteristics of diamond-like carbon (DLC) coatings

Sundararajan, T.; Hausberger, Andreas; Lackner, J.M.; Waldhauser, W.; Schwarz, T.

doi:10.1016/j.surfcoat.2016.06.021

Cited by 31 publications

(17 citation statements)

References 41 publications

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“…It is understandable that a smaller patch size has a lower probability of fracture during loading/sliding and endows DLC/rubber with better flexibility [26]. In addition, the effect of rubber roughness on the friction performance of DLC/rubber has been studied [27]. It was found that superior wear resistance can be obtained by depositing DLC films on rough/grainy rubber surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…It was found that superior wear resistance can be obtained by depositing DLC films on rough/grainy rubber surfaces. By contrast, the relatively smooth rubber surface has a detrimental effect on the friction and wear performance of DLC/rubber [27]. Although the friction behavior has been extensively studied from the perspective of DLC films and rubber substrates, the relationship between plasma pretreatment and the friction performance of DLC/rubber is unclear.…”

Section: Introductionmentioning

confidence: 99%

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Adhesion and friction performance of DLC/rubber: The influence of plasma pretreatment

Chun

Gong

et al. 2021

Friction

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Diamond-like carbon (DLC) films are deposited on rubber surfaces to protect the rubber components, and surface pretreatment of the rubber substrates prior to the film deposition can improve the adhesion between the DLC films and the rubber. Thus, the principal purpose of this work concentrates on determining the effects of argon (Ar), oxygen (O2), nitrogen (N2), and hydrogen (H2) plasma pretreatments on the adhesion and friction performance of the DLC films deposited on rubber (DLC/rubber). The results indicated that the Ar plasma pretreatment promoted the formation of a compact layer on the rubber surface. By contrast, massive fillers were exposed on the rubber surface after oxygen or nitrogen plasma pretreatments. Moreover, the typical micrometer-scale patches divided by random cracks were observed on the surface of DLC/rubber, except for the sample pretreated with oxygen plasma. The adhesion of DLC/rubber was found to strengthen with the removal of weak boundary layers and the generation of free radicals on the rubber surface after plasma pretreatment. The tribo-tests revealed that DLC/rubber with O2, N2, and H2 plasma pretreatments cannot achieve optimal friction performance. Significantly, DLC/rubber with Ar plasma pretreatment exhibited a low and stable friction coefficient of 0.19 and superior wear resistance, which was correlated to the high adhesion, good load-bearing of the rubber surface, and the approximate sine function of the surface profile of the DLC film.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adhesion and friction performance of DLC/rubber: The influence of plasma pretreatment

Chun

Gong

et al. 2021

Friction

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“…The film thickness has only a limited effect on surface energy. Comparing to HNBR, which has a similar mean roughness (Ra), FKM is much rougher and dense particles can be seen on the surface [24]. The film thickness has only a limited effect on surface energy.…”

Section: Surface Energymentioning

confidence: 95%

“…The proportion of MoS 2 in the composite increases from Hybrid_A to Hybrid_C. Based on our previous work, the set value of 300 nm was selected as the standard thickness for the coatings and the set values of the thickness were defined based on the deposition rate [24]. In order to investigate the influence of the thickness on the tribological properties, 150 nm thick coatings were also obtained through controlling the deposition process time.…”

Section: Test Materials and Coatingsmentioning

confidence: 99%

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The Potential of Tribological Application of DLC/MoS2 Coated Sealing Materials

et al. 2018

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Abstract:The potential of the combination of hard and soft coating on elastomers was investigated. Diamond-like carbon (DLC), molybdenum disulfide (MoS 2 ) and composite coatings of these two materials with various DLC/MoS 2 ratios were deposited on four elastomeric substrates by means of the magnetron sputtering method. The microstructures, surface energy of the coatings, and substrates were characterized by scanning electron microscopy (SEM) and contact angle, respectively. The chemical composition was identified by X-ray Photoelectron Spectroscopy (XPS). A ball on disc configuration was used as the model test, which was performed under dry and lubricated conditions. Based on the results from the model tests, the best coating was selected for each substrate and subsequently verified in component-like test. There is not one coating that is optimal for all substrates. Many factors can affect the coatings performance. The topography and the rigidity of the substrates are the key factors. However, the adhesion between coatings and substrates, and also the coating processes, can impact significantly on the coatings performance.

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Research progress on compounding agent and mechanical test method of fluororubber

Zhang

et al. 2021

J of Applied Polymer Sci

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Fluororubber (FKM) materials have excellent mechanical properties, and are widely used in automotive and aerospace fields. As fluorine rubber is a typical representative of new special rubber, the formula and mechanical test method of fluorine rubber have become one of the important issues at present. Multi‐factor optimization of fluororubber compound plays an important role in the mechanical properties of FKM. Based on the introduction of new materials in FKM compounding agents (reinforcing agent, softening plasticizer, anti‐aging agent, accelerator, vulcanizing agent, auxiliary agent and filler), this paper focuses on the research progress of characterization methods and mechanical properties of the composite materials combined with FKM.

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Effect of the type of elastomeric substrate on the microstructural, surface and tribological characteristics of diamond-like carbon (DLC) coatings

Cited by 31 publications

References 41 publications

Adhesion and friction performance of DLC/rubber: The influence of plasma pretreatment

Adhesion and friction performance of DLC/rubber: The influence of plasma pretreatment

The Potential of Tribological Application of DLC/MoS2 Coated Sealing Materials

Research progress on compounding agent and mechanical test method of fluororubber

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