Synthesis and Tribological Performance of Carbon Nanostructures Formed on AISI 316 Stainless Steel Substrates

Suárez-Martínez, Reynier; Ocampo-Macias, T.; Lara‐Romero, Javier; Lemus‐Ruiz, José; Jiménez-Alemán, Omar; Chiñas‐Castillo, Fernando; Zamora, Roberto Sagaró; Jiménez‐Sandoval, S.; Paraguay‐Delgado, F.

doi:10.1007/s11249-016-0769-5

Cited by 3 publications

(3 citation statements)

References 52 publications

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“…The G 0 /G band intensity ratio (I G 0/I G ) increases as the long-range order of C deposits is increased. [18][19][20][21] From the band ratios, the I D /I G ratio value is 0.84, indicating that fewer defects are present in the sample, while the I G 0 /I G ratio is 1.68, indicating a greater long-range alignment. TEM image (Figure 4(c)) indicates that the obtained CNTs are of the multiple walls type (MWCNTs) since the central opening is clearly observed.…”

Section: Characterization Of Synthetized Cnts and Cfmmentioning

confidence: 99%

“…The spectrum shows the three characteristic peaks related to the formation of CNTs, that is, the D band at approximately 1340 cm À1 , which corresponds to the phonon mode induced by disorder (A 1g ), the G band at approximately 1580 cm À1 assigned to the phonon mode allowed by Raman (E 2g ), and the band G 0 at approximately 2660 cm À1 assigned to the first overtone of mode D.The D/G band intensity ratio (I D /I G ) is reported to increase with increasing structural disorder. The G 0 /G band intensity ratio (I G 0/I G ) increases as the long-range order of C deposits is increased [18][19][20][21]. From the band ratios, the I D /I G ratio value is 0.84, indicating that fewer defects are present in the sample, while the I G 0 /I G ratio is 1.68, indicating a greater long-range alignment.…”

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confidence: 99%

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Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Vélez

Cornelio

Sierra

et al. 2020

Advanced Composites Letters

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Wear of wheels and rails is a major problem in railway transportation industry. Solid lubricants constitute a cost-efficient alternative to control wear and friction at the wheel–rail interface, especially when a fine-tuned balance between traction force and energy consumption is sought. In this work, composite friction modifiers (CFMs) composed of a vinyl ester matrix reinforced with molybdenum disulfide and carbon nanotubes were developed. The total solid additive content was less than a half in comparison with a commercial product available on the market, which was used as a reference. A benchmarking study of the CFM was carried out by means of tribological tests in a twin-disc machine at a contact pressure of 1.1 GPa and different slip values. The results indicated that the developed CFM reduce coefficient of traction by 10% compared to unlubricated conditions that is similar to the reference. However, the total mass loss of steel components due to wear under CFM lubrication was lower than in the reference test.

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Section: Characterization Of Synthetized Cnts and Cfmmentioning

confidence: 99%

mentioning

confidence: 99%

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Vélez

Cornelio

Sierra

et al. 2020

Advanced Composites Letters

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show abstract

“…Modifying the synthesis conditions allows tuning of the geometry, alignment, density, and structure of CNTs, which offers control over their mechanical performance [5,6,7,8,9,10]. CNT forests grown directly on metal substrates, and specifically on steels, are particularly interesting because they offer a conformal coating solution, which is independent from the substrate’s geometry [11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36]. Direct growth avoids the need for intermediate adhesive layers, thus enabling a robust contact interface between the CNTs and the metal [12].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Vertically Aligned Carbon Nanotube Forests Grown on Stainless Steel Surfaces

et al. 2019

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Vertically aligned carbon nanotube (CNT) forests are a particularly interesting class of nanomaterials, because they combine multifunctional properties, such as high energy absorption, compressive strength, recoverability, and super-hydrophobicity with light weight. These characteristics make them suitable for application as coating, protective layers, and antifouling substrates for metallic pipelines and blades. Direct growth of CNT forests on metals offers the possibility of transferring the tunable CNT functionalities directly onto the desired substrates. Here, we focus on characterizing the structure and mechanical properties, as well as wettability and adhesion, of CNT forests grown on different types of stainless steel. We investigate the correlations between composition and morphology of the steel substrates with the micro-structure of the CNTs and reveal how the latter ultimately controls the mechanical and wetting properties of the CNT forest. Additionally, we study the influence of substrate morphology on the adhesion of CNTs to their substrate. We highlight that the same structure-property relationships govern the mechanical performance of CNT forests grown on steels and on Si.

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Graphene Grown by Chemical Vapour Deposition on Steel Substrates: Friction Behaviour

et al. 2017

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Synthesis and Tribological Performance of Carbon Nanostructures Formed on AISI 316 Stainless Steel Substrates

Cited by 3 publications

References 52 publications

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Characterization of Vertically Aligned Carbon Nanotube Forests Grown on Stainless Steel Surfaces

Graphene Grown by Chemical Vapour Deposition on Steel Substrates: Friction Behaviour

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