Triboscopy, a quantitative tool for the study of the wear of a coated material

Belin, M.; López, Jesús María Rincón; Martin, Jean‐Michel

doi:10.1016/0257-8972(94)90070-1

Cited by 14 publications

(16 citation statements)

References 3 publications

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“…The electrical and tribological contact behavior was investigated by using a ball-on-plate linear reciprocating tribometer [6] [7]. A brass ball was used as the counterpart of the Cu-DLC.…”

Section: Methodsmentioning

confidence: 99%

Relationship between electrical-tribological behavior and properties of sliding surfaces of copper containing diamond-like carbon nanocomposite coated plate and brass ball

Hombo

Kato

Nozu

et al. 2014

2014 IEEE 60th Holm Conference on Electrical Contacts (Holm)

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Reducing the electrical contact resistance (ECR) and the coefficient of friction (CoF) are major technological requirements for sliding contacts. This report provides electricaltribological characteristics of a Copper containing Diamond-like Carbon (Cu-DLC) nanocomposite coating deposited on a brass plate, investigated by using a ball/plate reciprocating tribometer. The counterpart was a brass ball. While the initial ECR was hundreds of milliohms, it gradually decreased with cycles and reached approximately 2 milliohms after 600 cycles. CoF started below 0.35 and decreased progressively, and stabilized around 0.25 after 600 cycles. The good electrical-tribological characteristics lasted up to approximately 7500 cycles and CoF increased rapidly after. Sliding surfaces at different cycles were analyzed by optical microscope, laser-scanning microscope, EDX, TEM and nanoindentation. The results of analyses revealed that a copper-rich tribofilm was built up on the ball, which grew with cycles. The Cu-DLC wore gradually and its substrate was exposed after less than 1000 cycles. Nevertheless, detrimental effects were not observed either on ECR or on CoF up to 7500 cycles. The unique structures and properties of the tribofilm and the worn Cu-DLC surface are discussed, attempting to account for their key roles on the good characteristics.

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“…The electrical and tribological contact behavior was investigated by using a ball-on-plate linear reciprocating tribometer [6] [7]. A brass ball was used as the counterpart of the Cu-DLC.…”

Section: Methodsmentioning

confidence: 99%

Relationship between electrical-tribological behavior and properties of sliding surfaces of copper containing diamond-like carbon nanocomposite coated plate and brass ball

Hombo

Kato

Nozu

et al. 2014

2014 IEEE 60th Holm Conference on Electrical Contacts (Holm)

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“…In this work, the variables measured during reciprocating tests are represented using the principles of triboscopy proposed by Belin et al [4,5]. However, some new features were developed aiming to improve significance and interpretation of the triboscopic maps produced.…”

Section: Description Of Triboscopymentioning

confidence: 99%

“…Triboscopy has been pointed out as particularly useful to analyse the tribological behaviour of coatings [5,7]. For example, the investigation of the effect of different surrounding atmospheres and testing conditions on the tribological performance of carbon nitride films deposited by ion-beam-assisted deposition onto silicon was helped by the use of triboscopy [8].…”

Section: Introductionmentioning

confidence: 99%

“…When commercial visualisation softwares are used, basic functions such as contrast enhancement and digital filtering can be used. Belin et al [5] proposed a statistical method to extract quantitative information about the sliding contact using the triboscopic imaging, which involves temporal and spatial filtering of the data.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is possible to produce numerical images from the data collected during reciprocating tests, where the X axis represents the relative position of the contact, the Y axis represents the number of cycles, and the grey level of each pixel corresponds to the level of the measured value, in general friction coefficient or contact electrical resistance [4,5]. Therefore, triboscopy enables to follow the global evolution of data during an entire test, as well as to observe specific heterogeneities and therefore localised events, which provide important information about the sliding interface and its evolution [6].…”

Section: Introductionmentioning

confidence: 99%

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We report a highly effective macroscopic, nonaqueous lubrication strategy, employing polymer-brushbased surface modification. Poly(alkyl methacrylates) with hexyl, dodecyl and octadecyl side chains have been prepared on both silicon and iron substrates by means of surface-initiated atom-transfer radical polymerisation. Frictional properties of the three polymers have been evaluated in hexadecane, ethanol and toluene. For the case of the poly(dodecyl methacrylate), the study additionally involved nine base lubricating fluids of different chemical natures, with viscosities ranging from 4 to 2,200 cSt at 20°C. By constructing a set of Stribeck curves at low values of speed 9 viscosity (at constant load), it was possible to identify an extended hydrodynamic lubrication regime and, for P12MA-based coatings, a low-friction, brush-lubrication regime, reinforced by time-dependant effects, which appeared to replace the mixed and boundary regimes observed for conventional lubricants. Self-mated poly(dodecyl methacrylate) brushes maintained low coefficient-of-friction values (e.g. 0.012 in hexadecane) over thousands of reciprocating cycles ([100 m total distance) under low speed 9 viscosity conditions (0.1 cm/s and 4 cSt).

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Triboscopy, a quantitative tool for the study of the wear of a coated material

Cited by 14 publications

References 3 publications

Relationship between electrical-tribological behavior and properties of sliding surfaces of copper containing diamond-like carbon nanocomposite coated plate and brass ball

Relationship between electrical-tribological behavior and properties of sliding surfaces of copper containing diamond-like carbon nanocomposite coated plate and brass ball

Potentiality of triboscopy to monitor friction and wear

Polymer-Brush Lubrication in Oil: Sliding Beyond the Stribeck Curve

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