Nanofluidics: Viscous dissipation in layered liquid films

被引:93
作者
Becker, T [1 ]
Mugele, F [1 ]
机构
[1] Univ Ulm, Abt Angew Phys, D-89081 Ulm, Germany
关键词
D O I
10.1103/PhysRevLett.91.166104
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We studied the layer-by-layer collapse of molecularly thin films of a model lubricant confined between two atomically smooth substrates. The dynamics of the consecutive expulsion of four molecular layers were found to slow down with decreasing film thickness but showed no evidence for confinement-induced solidification. Using a hydrodynamic model, we show that the sliding friction of liquid layers on top of the solid substrates is approximately 18 times higher than the mutual friction between adjacent liquid layers. The latter was independent of film thickness and in close agreement with the bulk viscosity.
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页数:4
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共 32 条
  • [21] Contrasting friction and diffusion in molecularly thin confined films
    Mukhopadhyay, A
    Zhao, J
    Bae, SC
    Granick, S
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (13)
  • [22] Presence of particles on melt-cut mica sheets
    Ohnishi, S
    Hato, M
    Tamada, K
    Christenson, HK
    [J]. LANGMUIR, 1999, 15 (09) : 3312 - 3316
  • [23] Persson B. N. J., 2000, SLIDING FRICTION
  • [24] Phenomenology of squeezing and sliding of molecularly thin Xe, CH4 and C16H34 lubrication films between smooth and rough curved solid surfaces with long-range elasticity
    Persson, BNJ
    Samoilov, VN
    Zilberman, S
    Nitzan, A
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (08) : 3897 - 3914
  • [25] LAYERING TRANSITION IN CONFINED MOLECULAR THIN-FILMS - NUCLEATION AND GROWTH
    PERSSON, BNJ
    TOSATTI, E
    [J]. PHYSICAL REVIEW B, 1994, 50 (08): : 5590 - 5599
  • [26] Structure and dynamics of nanofluids: Theory and simulations to calculate viscosity
    Pozhar, LA
    [J]. PHYSICAL REVIEW E, 2000, 61 (02) : 1432 - 1446
  • [27] Ultrathin fluid films confined to a chemically heterogeneous slit-shaped nanopore
    Schoen, M
    Diestler, DJ
    [J]. PHYSICAL REVIEW E, 1997, 56 (04): : 4427 - 4440
  • [28] SHEAR-FLOW NEAR SOLIDS - EPITAXIAL ORDER AND FLOW BOUNDARY-CONDITIONS
    THOMPSON, PA
    ROBBINS, MO
    [J]. PHYSICAL REVIEW A, 1990, 41 (12): : 6830 - 6837
  • [29] Shear viscosity of simple fluids in porous media: molecular dynamic simulations and correlation models
    Zhang, H
    Zhang, BJ
    Liang, SQ
    Lu, YH
    Hu, WX
    Jin, ZJ
    [J]. CHEMICAL PHYSICS LETTERS, 2001, 350 (3-4) : 247 - 252
  • [30] Viscosity of interfacial water
    Zhu, YX
    Granick, S
    [J]. PHYSICAL REVIEW LETTERS, 2001, 87 (09)