Journal Home > Volume 8 , Issue 4

Understanding the mechanism of precision sliding contacts with thin, adherent solid nano lubricating particle films is important to improve friction and wear behavior and ensure mechanical devices have long service lifetimes. Herein, a facile and multistep approach for the preparation of graphene oxide (GO) is presented. Subsequently, surface modification of as-synthesized GO with octadecyl amine (ODA) is performed to prepare hydrophobic GO-ODA and with 6-amino-4-hydroxy-2-naphthalenesulfonic acid (ANS) to prepare amphoteric GO-ANS through a nucleophilic addition reaction. X-ray diffraction and ultraviolet-visible, Fourier transform infrared, and Raman spectroscopy provide significant information about the reduction of oxygen functionalities on GO and the introduction of new functionalities in GO-ODA and GO-ANS. The effects of particle functionalization for the improved control of particle adhesion to the tribocontact have been studied. Wettability and thermal stability were determined using the water contact angle, and atomic force microscopy and differential scanning calorimetry (DSC) were used to characterize particle adhesion to the tribocontact. The tribological performances of the particles have been investigated using macro- and micro-tribometry using pin/ball-on-disc contact geometries. The influence of particle functionalization on the contact pressure and sliding velocity was also studied under rotating and reciprocating tribo-contact in ambient conditions. With an increase in the contact pressure, the functionalized particles are pushed down into the contact, and they adhere to the substrate to form a continuous film that eventually reduces friction. Amphoteric GO-ANS provides the lowest and most steady coefficient of friction (COF) under all tested conditions along with low wear depth and minimal plastic deformation. This is because particles with superior wetting and thermal properties can have better adherence to and stability on the surface. GO-ANS has a superior ability to adhere on the track to form a thicker and more continuous film at the interface, which is investigated by field emission scanning electron microscopy, energy dispersive spectroscopy, and Raman analysis.


menu
Abstract
Full text
Outline
About this article

Lubrication of dry sliding metallic contacts by chemically prepared functionalized graphitic nanoparticles

Show Author's information Suprakash SAMANTA1,2Santosh SINGH1Rashmi R. SAHOO1,2( )
Surface Engineering & Tribology Division, CSIR - Central Mechanical Engineering Research Institute, Durgapur 713209, India
Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India

Abstract

Understanding the mechanism of precision sliding contacts with thin, adherent solid nano lubricating particle films is important to improve friction and wear behavior and ensure mechanical devices have long service lifetimes. Herein, a facile and multistep approach for the preparation of graphene oxide (GO) is presented. Subsequently, surface modification of as-synthesized GO with octadecyl amine (ODA) is performed to prepare hydrophobic GO-ODA and with 6-amino-4-hydroxy-2-naphthalenesulfonic acid (ANS) to prepare amphoteric GO-ANS through a nucleophilic addition reaction. X-ray diffraction and ultraviolet-visible, Fourier transform infrared, and Raman spectroscopy provide significant information about the reduction of oxygen functionalities on GO and the introduction of new functionalities in GO-ODA and GO-ANS. The effects of particle functionalization for the improved control of particle adhesion to the tribocontact have been studied. Wettability and thermal stability were determined using the water contact angle, and atomic force microscopy and differential scanning calorimetry (DSC) were used to characterize particle adhesion to the tribocontact. The tribological performances of the particles have been investigated using macro- and micro-tribometry using pin/ball-on-disc contact geometries. The influence of particle functionalization on the contact pressure and sliding velocity was also studied under rotating and reciprocating tribo-contact in ambient conditions. With an increase in the contact pressure, the functionalized particles are pushed down into the contact, and they adhere to the substrate to form a continuous film that eventually reduces friction. Amphoteric GO-ANS provides the lowest and most steady coefficient of friction (COF) under all tested conditions along with low wear depth and minimal plastic deformation. This is because particles with superior wetting and thermal properties can have better adherence to and stability on the surface. GO-ANS has a superior ability to adhere on the track to form a thicker and more continuous film at the interface, which is investigated by field emission scanning electron microscopy, energy dispersive spectroscopy, and Raman analysis.

Keywords: electron microscopy, graphite, carbon, nanoparticles, adhesion, solid lubricants, sliding friction and wear

References(52)

[1]
U Beerschwinger, D Mathieson, R L Reuben, S J Yang. A study of wear on MEMS contact morphologies. J Micromech Micro Eng 4(3): 95-105 (1994)
[2]
H J Kim, D E Kim. Nano-scale friction: A review. Int J Precis Eng Manuf 10(2): 141-151 (2009)
[3]
H J Kim, S S Yoo, D E Kim. Nano-scale wear: A review. Int J Precis Eng Manuf 13(9): 1709-1718 (2012)
[4]
K Holmberg, P Andersson, A Erdemir. Global energy consumption due to friction in passenger cars. Tribol Int 47: 221-234 (2012)
[5]
V W Wong, S C Tung. Overview of automotive engine friction and reduction trends—Effects of surface, material, and lubricant-additive technologies. Friction 4(1): 1-28 (2016)
[6]
F P Bowden, D Tabor. The Friction and Lubrication of Solids, Part II. London (UK): Oxford University Press, 1964.
[7]
I L Singer. Mechanics and chemistry of solids in sliding contact. Langmuir 12(19): 4486-4491 (1996)
[8]
K Miyoshi. Solid Lubrication Fundamentals and Applications. New York (USA): Marcel Dekker, 2001.
DOI
[9]
J M Martin, N Ohmae. Nanolubricants. Chichester (USA): John Wiley & Sons Ltd, 2008.
DOI
[10]
J Gänsheimer, R Holinski. A study of solid lubricants in oils and greases under boundary conditions. Wear 19(4): 439-449 (1972)
[11]
T Mang, W Dresel. Lubricants and Lubrication. 2nd ed. Weinheim (Germany): Wiley-VCH, 2007.
DOI
[12]
N Nemati, M Emamy, S Yau, J K Kim, D E Kim. High temperature friction and wear properties of graphene oxide/polytetrafluoroethylene composite coatings deposited on stainless steel. RSC Adv 6(7): 5977-5987 (2016)
[13]
V N Bakunin, A Y Suslov, G N Kuzmina, O P Parenago, A V Topchiev. Synthesis and application of inorganic nanoparticles as lubricant components—A review. J Nanopart Res 6(2): 273-284 (2004)
[14]
Y R Jeng, Y H Huang, P C Tsai, G L Hwang. Tribological performance of oil-based lubricants with carbon-Fe nanocapsules additive. Tribol Trans 58(5): 924-929 (2015)
[15]
R R Sahoo, S K Biswas. Deformation and friction of MoS2 particles in liquid suspensions used to lubricate sliding contact. Thin Solid Films 518(21): 5995-6005 (2010)
[16]
R R Sahoo, S Math, S K Biswas. Mechanics of deformation under traction and friction of a micrometric monolithic MoS2 Particle in comparison with those of an agglomerate of nanometric MoS2 particles. Tribol Lett 37(2): 239-249 (2010)
[17]
L Gara, Q Zou. Friction and wear characteristics of oil-based ZnO nanofluids. Tribol Trans 56(2): 236-244 (2013)
[18]
K S Novoselov, A K Geim, S V Morozov, D Jiang, Y Zhang, S V Dubonos, I V Grigorieva, A A Firsov. Electric field effect in atomically thin carbon films. Science 306(5696): 666-669 (2004)
[19]
M Kalin, J Kogovšek, M Remškar. Mechanisms and improvements in the friction and wear behavior using MoS2 nanotubes as potential oil additives. Wear 280−281: 36-45 (2012)
[20]
A A Alazemi, A D Dysart, X L Phuah, V G Pol, F Sadeghi. MoS2 nanolayer coated carbon spheres as an oil additive for enhanced tribological performance. Carbon 110: 367-377 (2016)
[21]
M Sgroi, F Gili, D Mangherini, I Lahouij, F Dassenoy, I Garcia, I Odriozola, G Kraft. Friction reduction benefits in valve-train system using IF-MoS2 added engine oil. Tribol Trans 58(2): 207-214 (2015)
[22]
Z Chen, Y H Liu, S Gunsel, J B Luo. Mechanism of Antiwear property under high pressure of synthetic oil-soluble ultrathin MoS2 sheets as lubricant additives. Langmuir 34(4): 1635-1644 (2018)
[23]
J Zhao, Y Y He, Y F Wang, W Wang, L Yan, J B Luo. An investigation on the tribological properties of multilayer graphene and MoS2 nanosheets as additives used in hydraulic applications. Tribol Int 97: 14-20 (2016)
[24]
C Donnet, A Erdemir. Historical developments and new trends in tribological and solid lubricant coatings. Surf Coat Technol 180−181: 76−84 (2004)
[25]
T W Scharf, S V Prasad. Solid Lubricants: A Review. J Mater Sci 48(2): 511−531 (2013)
[26]
F Wählisch, J Hoth, C Held, T Seyller, R Bennewitz. Friction and atomic-layer-scale wear of graphitic lubricants on SiC(0001) in dry sliding. Wear 300(1-2): 78-81 (2013)
[27]
R R Sahoo, S K Biswas. Microtribology and friction-induced material transfer in layered MoS2 nanoparticles sprayed on a steel surface. Tribol Lett 37(2): 313-326 (2010)
[28]
J Zhao, J Y Mao, Y R Li, Y Y He, J B Luo. Friction-induced Nano-structural evolution of graphene as a lubrication additive. Appl Surf Sci 434: 21-27 (2018)
[29]
J Zhao, Y R Li, J Y Mao, Y Y He, J B Luo. Synthesis of thermally reduced graphite oxide in sulfuric acid and its application as an efficient lubrication additive. Tribol Int 116: 303-309 (2017)
[30]
D Berman, A Erdemir, A V Sumant. Graphene: A new emerging lubricant. Mater Today 17(1): 31-42 (2014)
[31]
L Y Lin, D E Kim, W K Kim, S C Jun. Friction and wear characteristics of multi-layer graphene films investigated by atomic force microscopy. Surf Coat Technol 205(20): 4864−4869 (2011)
[32]
K S Kim, H J Lee, C Lee, S K Lee, H Jang, J H Ahn, J H Kim, H J Lee. Chemical vapor deposition-grown graphene: The thinnest solid lubricant. ACS Nano 5(6): 5107-5114 (2011)
[33]
Y T Peng, Z Q Wang, K Zou. Friction and wear properties of different types of graphene nanosheets as effective solid lubricants. Langmuir 31(28): 7782−7791 (2015)
[34]
D Berman, A Erdemir, A V Sumant. Reduced wear and friction enabled by graphene layers on sliding steel surfaces in dry nitrogen. Carbon 59: 167-175 (2013)
[35]
C Lee, X D Wei, Q Y Li, R Carpick, J W Kysar, J Hone. Elastic and frictional properties of graphene. Phys Status Solidi B 242(11-12): 2562-2567 (2009)
[36]
T Filleter, J L McChesney, A Bostwick, E Rotenberg, K V Emtsev, T Seyller, K Horn, R Bennewitz. Friction and dissipation in epitaxial graphene films. Phys Rev Lett 102(8): 086102 (2009)
[37]
D Berman, S A Deshmukh, S K R S Sankaranarayanan, A Erdemir, A V Sumant. Extraordinary macroscale wear resistance of one atom thick graphene layer. Adv Funct Mater 24(42): 6640−6646 (2014)
[38]
J F Ou, J Q Wang, S Liu, B Mu, J F Ren, H G Wang, S R Yang. Tribology study of reduced graphene oxide sheets on silicon substrate synthesized via covalent assembly. Langmuir 26(20): 15830-15836 (2010)
[39]
X F Gao, J Jang, S Nagase. Hydrazine and thermal reduction of graphene oxide: Reaction mechanisms, product structures, and reaction design. J Phys Chem C 114(2): 832-842 (2010)
[40]
H Lee, N Son, H Y Jeong, T G Kim, G S Bang, J Y Kim, G W Shim, K C Goddeti, J H Kim, N Kim, et al. Friction and conductance imaging of sp2- and sp3- hybridized subdomains on single-layer graphene oxide. Nanoscale 8(7): 4063−4069 (2016)
[41]
A A Alazemi, A D Dysart, S J Shaffer, V G Pol, L E Stacke, F Sadeghi. Novel tertiary dry solid lubricant on steel surfaces reduces significant friction and wear under high load conditions. Carbon 123: 7-17 (2017)
[42]
P Saravanan, R Selyanchyn, H Tanaka, D Darekar, A Staykov, S Fujikawa, S M Lyth, J Sugimura. Macroscale superlubricity of multilayer polyethylenimine/graphene oxide coatings in different gas environments. ACS Appl Mater Interfaces 8(40): 27179-27187 (2016)
[43]
S Samanta, S Singh, R R Sahoo. Simultaneous chemical reduction and surface Functionalization of graphene oxide for efficient lubrication of steel-steel contact. RSC Adv 5(76): 61888-61899 (2015)
[44]
X J Zhou, J L Zhang, H X Wu, H J Yang, J Y Zhang, S W Guo. Reducing graphene oxide via hydroxylamine: A simple and efficient route to graphene. J Phys Chem C 115(24): 11957-11961 (2011)
[45]
G C Huang, T Chen, W X Chen, Z Wang, K Chang, L Ma, F H Huang, D Y Chen, L Y Lee. Graphene-like MoS₂/ graphene composites: Cationic surfactant-assisted hydrothermal synthesis and electrochemical reversible storage of lithium. Small 9(21): 3693-3703 (2013)
[46]
K N Kudin, B Ozbas, H C Schniepp, R K Prud’homme, I A Aksay, R Car. Raman spectra of graphite oxide and functionalized graphene sheets. Nano Lett 8(1): 36-41 (2008)
[47]
S R Wang, Y Zhang, N Abidi, L Cabrales. Wettability and surface free energy of graphene films. Langmuir 25(18): 11078-11081 (2009)
[48]
C Botas, P Álvarez, C Blanco, R Santamaría, M Granda, P Ares, F Rodríguez-Reinoso, R Menéndez. The effect of the parent graphite on the structure of graphene oxide. Carbon 50(1): 275-282 (2012)
[49]
H Kim, Y Miura, C W Macosko. Graphene/polyurethane nanocomposites for improved gas barrier and electrical conductivity. Chem Mater 22(11): 3441-3450 (2010)
[50]
M J McAllister, J L Li, D H Adamson, H C Schniepp, A A Abdala, J Liu, M Herrera-Alonso, D L Milius, R Car, R K Prud’homme, et al. Single sheet functionalized graphene by oxidation and thermal expansion of graphite. Chem Mater 19(18): 4396-4404 (2007)
[51]
Y Qiu, F Guo, R Hurt, I Külaots. Explosive thermal reduction of graphene oxide-based materials: Mechanism and safety implications. Carbon 72: 215-223 (2014)
[52]
Y T Peng, Z Q Wang. Tribological properties of sodium dodecyl sulfate aqueous dispersion of graphite-derived carbon materials. RSC Adv 4(20): 9980-9985 (2014)
Publication history
Copyright
Acknowledgements
Rights and permissions

Publication history

Received: 14 August 2018
Revised: 24 November 2018
Accepted: 15 April 2019
Published: 19 July 2019
Issue date: August 2020

Copyright

© The author(s) 2019

Acknowledgements

The authors are grateful to CSIR, India for the grant through 12FYP project ESC-0112 in carrying out this work. We are also thankful to our Director for the permission to publish this work.

Rights and permissions

Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Return