Role of humidity in reducing sliding friction of multilayered graphene

被引:139
作者
Bhowmick, Sukanta [1 ]
Banerji, Anindya [1 ]
Alpas, Ahmet T. [1 ]
机构
[1] Univ Windsor, Dept Mech Automot & Mat Engn, Engn Mat Program, Windsor, ON N9B 3P4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
TRIBOLOGICAL BEHAVIOR; CARBON COATINGS; WEAR; ALUMINUM; ADHESION; AL;
D O I
10.1016/j.carbon.2015.01.053
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The sliding friction of multilayered graphene was examined by conducting pin-on-disk tests in ambient air with different relative humidity (RH) levels (10-45% RH) and in dry N-2 (0% RH) where a high coefficient of friction (COP) of 0.52 was measured. Tests carried out at 10% RH showed a low steady state COP of 0.17. Progressively lower friction values were observed when the RH of the atmosphere was increased, with the lowest COF of 0.11 reached at 45% RH. Micro-Raman analyses of sliding surfaces of graphene transfer layers formed on the Ti-6Al-4V counterfaces showed an increase in the intensity of D-band with an increase in the RH suggesting defect formations in the C-network as a result of sp(2) to sp(3) transformation and amorphization during sliding. The H and OH passivation of graphene, as indicated by X-ray photoelectron spectra (XPS) of the contact surfaces, was a possible reason for low friction of graphene in humid atmospheres. Transfer layers incorporated stringers of graphene stacks with d-spacings of 0.34-0.38 nm, which were larger than that of pristine graphite suggesting that repulsion between the adsorbed molecules caused an increase in the lattice spacing. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:374 / 384
页数:11
相关论文
共 41 条
  • [1] Role of oxygen and humidity on the tribo-chemical behaviour of non-hydrogenated diamond-like carbon coatings
    Abou Gharam, A.
    Lukitsch, M. J.
    Qi, Y.
    Alpas, A. T.
    [J]. WEAR, 2011, 271 (9-10) : 2157 - 2163
  • [2] Effect of bio-fuel (E85) addition on lubricated sliding wear mechanisms of a eutectic Al-Si alloy
    Banerji, A.
    Edrisy, A.
    Francis, V.
    Alpas, A. T.
    [J]. WEAR, 2014, 311 (1-2) : 1 - 13
  • [3] High temperature tribological behavior of W containing diamond-like carbon (DLC) coating against titanium alloys
    Banerji, A.
    Bhowmick, S.
    Alpas, A. T.
    [J]. SURFACE & COATINGS TECHNOLOGY, 2014, 241 : 93 - 104
  • [4] Extraordinary Macroscale Wear Resistance of One Atom Thick Graphene Layer
    Berman, Diana
    Deshmukh, Sanket A.
    Sankaranarayanan, Subramanian K. R. S.
    Erdemir, Ali
    Sumant, Anirudha V.
    [J]. ADVANCED FUNCTIONAL MATERIALS, 2014, 24 (42) : 6640 - 6646
  • [5] Reduced wear and friction enabled by graphene layers on sliding steel surfaces in dry nitrogen
    Berman, Diana
    Erdemir, Ali
    Sumant, Anirudha V.
    [J]. CARBON, 2013, 59 : 167 - 175
  • [6] Few layer graphene to reduce wear and friction on sliding steel surfaces
    Berman, Diana
    Erdemir, Ali
    Sumant, Anirudha V.
    [J]. CARBON, 2013, 54 : 454 - 459
  • [7] Tribological behavior and machining performance of non-hydrogenated diamond-like carbon coating tested against Ti-6Al-4V: Effect of surface passivation by ethanol
    Bhowmick, S.
    Banerji, A.
    Alpas, A. T.
    [J]. SURFACE & COATINGS TECHNOLOGY, 2014, 260 : 290 - 302
  • [8] Bhowmick S, 2014, SURF COAT TECHNOL
  • [9] Quantifying Defects in Graphene via Raman Spectroscopy at Different Excitation Energies
    Cancado, L. G.
    Jorio, A.
    Martins Ferreira, E. H.
    Stavale, F.
    Achete, C. A.
    Capaz, R. B.
    Moutinho, M. V. O.
    Lombardo, A.
    Kulmala, T. S.
    Ferrari, A. C.
    [J]. NANO LETTERS, 2011, 11 (08) : 3190 - 3196
  • [10] Ultra-mild wear in eutectic Al-Si alloys
    Chen, M.
    Perry, T.
    Alpas, A. T.
    [J]. WEAR, 2007, 263 : 552 - 561