Formation of Lubricious Carbon Films by Added Carbon Nanohorns in Water

Sato, Hirotsuna; Takeno, Takanori; Adachi, K.

doi:10.2474/trol.11.455

Cited by 3 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9(b)). Similar to that presented by Sato et al [34], the carbon films are elongated along the rotation direction of the disk. They also studied the effect of another carbon-based nanoparticle additive: carbon nanohorn Table 3 Quantitative EDX analysis result of the wear scar of the ball after friction in NDP-OH (1 wt%).…”

Section: Effect Of Termination Group and Concentration Of Ndpssupporting

confidence: 83%

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

2020

Self Cite

View full text Add to dashboard Cite

Nanodiamond particles (NDPs) have been considered as a potential lubricant additive to various tribological applications, such as water lubrication systems. In this study, the tribological properties of silicon carbide (SiC) lubricated by NDPs dispersed in water are investigated utilizing the ball-on-disk tribometer. It is found that the slight addition of NDP to water (i.e., 0.001 wt%) can distinctly accelerate the running-in process, which is necessary to achieve a friction coefficient (μ) as low as 0.01. This study also discusses two NDP functional terminations —hydroxyl and carboxyl. It is demonstrated that the use of carboxyl-terminated NDP over a wide range of concentration (0.001 wt%–1 wt%) yields a low friction force. In contrast, the ideal effective concentration of hydroxyl-terminated NDP is considerably limited because agglomeration in this material is more probable to occur than in the former. Meanwhile, when utilizing NDPs, the input friction energy (Pin, defined as the product of sliding speed and applied load) is found to have an essential function. Several sliding tests were implemented at various Pin values (50–1,500 mW) using carboxyl-terminated water-dispersed NDPs. It was observed that the μ and wear decreased with increasing Pin when 200 mW < Pin < 1,500 mW. However, when Pin < 200 mW, low friction with high wear occurs compared with the resulting friction and wear when pure water is used.

show abstract

Section: Effect Of Termination Group and Concentration Of Ndpssupporting

confidence: 83%

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Numerous nanomaterials, such as fullerenes (Spikes, 2015;Valeryevna Gubarevich et al, 2005), graphene oxide , nanometals (Choi et al, 2009;Zhang et al, 2010), and carbon nanotubes (Chauveau et al, 2012;Sato et al, 2016) are regarded as notable materials for lubricating additives owing to their excellent mechanical and chemical properties. CNFs show significant potential as a lubricating additive based on two aspects.…”

Section: Introductionmentioning

confidence: 99%

Tribological property of cellulose nanofiber water dispersion using various material pairs

Kinoshita

Inada

Matsumoto

2020

JAMDSM

View full text Add to dashboard Cite

Cellulose nanofibers (CNFs) are synthesized by unraveling cellulose made from wood. CNFs have attracted significant attention among biomass materials owing to their excellent mechanical properties and wide range of applications. This study aims to elucidate the effects of CNFs as a lubricating additive. In order to accomplish this, CNFs were dispersed in water at densities of 0.02-1.0 mass%, and friction tests were performed using a ball-on-plate friction tester with a reciprocating motion configuration. Stainless steel (JIS-SUS304) and polyoxymethylene (POM) were used as sliding plates, while various materials were used for sliding balls. On both the SUS304 and POM plates, friction reductions were observed by adding only a small amount of CNFs (0.02 mass%). Although wear on the SUS304 plate reduced by 0.02 mass%, the water dispersion of CNFs was not distinct; it was observed only at densities of CNFs that were more than 0.2 mass%. On the POM plate, wear was induced by adding 0.02 mass% of CNF water dispersion. Adverse effects may arise with the addition of more than 0.2 mass% CNF. A distinctive feature observed in the water dispersion lubrication of CNFs was that a tribofilm is not formed due to the chemically inert nature of CNFs. It appears highly probable that in the water dispersion lubrication of CNFs, the physical effects of these fibers are much stronger than their chemical effects. These effects include rolling and/or sliding, which occurred in fullerene and carbon nanotubes.

show abstract

Tribological properties of oxidized wood-derived nanocarbons with same surface chemical composition as graphene oxide for additives in water-based lubricants

Kinoshita

Suzuki

et al. 2018

Diamond and Related Materials

View full text Add to dashboard Cite

Formation of Lubricious Carbon Films by Added Carbon Nanohorns in Water

Cited by 3 publications

References 7 publications

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

Tribological property of cellulose nanofiber water dispersion using various material pairs

Tribological properties of oxidized wood-derived nanocarbons with same surface chemical composition as graphene oxide for additives in water-based lubricants

Contact Info

Product

Resources

About