Influence of humidity and doping elements on the friction and wear of SiC in unlubricated sliding

Murthy, V. S. R.; Kobayashi, Hiroki; Tsurekawa, Sadahiro; Tamari, Nobuyuki; Watanabe, Tadao; Kato, Koji

doi:10.1016/j.triboint.2003.11.002

Cited by 49 publications

(24 citation statements)

References 16 publications

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“…Silicon carbide (SiC) has been shown to form tribo-films similar to Si 3 N 4 and follows the same trends of decreasing friction and wear with increasing humidity [68]. On SiC, graphite can be formed by tribochemical reaction and is found in the debris and tribo-film [74]. Gaseous products instead of graphite have also been observed during SiC wear [75].…”

Section: Environmental Effect On Friction and Wear Of Ceramicsmentioning

confidence: 98%

Vapors in the ambient—A complication in tribological studies or an engineering solution of tribological problems?

et al. 2015

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Tribology involves not only two-body contacts of two solid materials-a substrate and a counter-surface; it often involves three-body contacts whether the third body is intentionally introduced or inevitably added during the sliding or rubbing. The intentionally added third body could be lubricant oil or engineered nanomaterial used to mitigate the friction and wear of the sliding contact. The inevitably added third body could be wear debris created from the substrate or the counter surface during sliding. Even in the absence of any solid third-body between the sliding surfaces, molecular adsorption of water or organic vapors from the surrounding environment can dramatically alter the friction and wear behavior of solid surfaces tested in the absence of lubricant oils. This review article covers the last case: the effects of molecular adsorption on sliding solid surfaces both inevitably occurring due to the ambient test and intentionally introduced as a solution for engineering problems. We will review how adsorbed molecules can change the course of wear and friction, as well as the mechanical and chemical behavior, of a wide range of materials under sliding conditions.

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Section: Environmental Effect On Friction and Wear Of Ceramicsmentioning

confidence: 98%

Vapors in the ambient—A complication in tribological studies or an engineering solution of tribological problems?

et al. 2015

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“…A wide range of COF values, from 0.2 to 0.6, are reported for SiC ceramics using different sliding tests and different material parameters. The high COF values are a result of the effects of mechanical wear including abrasion, and chipping or fracture of surfaces, whereas the formation of hydrated silica at the interface is responsible for lower values [13][14][15]. This suggests that the material removal for the SiC-WC composites in the investigated sliding conditions is dominated by mechanical wear, which will be clear in later sections.…”

Section: Frictional Behaviormentioning

confidence: 99%

“…The estimated wear rate for the SiC-WC composite varies from 4 Â 10 À 6 mm 3 /N•m to 1.3Â 10 À 5 mm 3 /N•m, with a minimum value obtained for SiC ceramics prepared with 50 wt% WC. Wear rates of liquid-phase sintered SiC ceramics were reported to vary between 10 À 7 mm 3 /N•m and 10 À 5 mm 3 /N•m with varying sliding test or environmental conditions [15,18]. The wear volume of the counterbody SiC ceramic balls is shown as a function of load and WC content in Fig.…”

Section: Frictional Behaviormentioning

confidence: 99%

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Effect of WC addition on sliding wear behavior of SiC ceramics

Sharma

Kumar

Kim

2015

Ceramics International

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“…There have been several studies investigating the tribological behaviour of SiC and alumina mated against steels [7][8][9][10][11] or self-mated [12][13][14][15][16][17]. However, the influence of possible tribochemical reactions when ceramics are mated against different steels has not been in focus of former research.…”

Section: Introductionmentioning

confidence: 99%

On the Tribological Behaviour of SiC and Alumina Mated Against Different Steels Under Dry Sliding Conditions

Wallstabe

2011

Tribol Lett

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There have been several studies regarding the tribological behaviour of ceramics such as SiC and alumina mated against steels or self-mated. Nevertheless, only little is known about possible tribochemical reactions when ceramics are mated against steels. In the present study, ceramic pins made of SiC (EKasicF) or alumina (F99.7) respectively were tested under dry sliding conditions against different steel disc counter bodies using a pin-ondisc tribometer. The different ceramics showed significant differences in their tribological behaviour, i.e., coefficient of friction and wear amount. Especially, the SiC couples showed significant differences in the wear amounts while these were quite similar for the alumina couples. The wear behaviour of the SiC couples is discussed in more detail. A correlation between chromium content of the steel discs was found for the SiC couples. The surfaces of selected specimens were analysed by Auger-Electron-Spectroscopy (AES). Wear for the SiC couples was mainly attributed to tribochemical reactions as far as the steel disc was containing the alloying element chromium in considerable amount. Furthermore, a simple wear schematic is proposed.

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Influence of humidity and doping elements on the friction and wear of SiC in unlubricated sliding

Cited by 49 publications

References 16 publications

Vapors in the ambient—A complication in tribological studies or an engineering solution of tribological problems?

Vapors in the ambient—A complication in tribological studies or an engineering solution of tribological problems?

Effect of WC addition on sliding wear behavior of SiC ceramics

On the Tribological Behaviour of SiC and Alumina Mated Against Different Steels Under Dry Sliding Conditions

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