Two-dimensional observation of drainage and layering transitions in confined liquids

Friedrich Gunther Mugele; T. Becker; A. Klingner; M. Salmeron

doi:10.1016/S0927-7757(02)00083-3

Two-dimensional observation of drainage and layering transitions in confined liquids

Friedrich Gunther Mugele, T. Becker, A. Klingner, M. Salmeron

University of Twente

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Abstract

We used a surface forces apparatus (SFA) to investigate the drainage of thin films of undecanol from a pore consisting of two atomically smooth mica sheets. Time-resolved images of the contact area during drainage show an initial elastohydrodynamic deformation of the substrates. In the late stage, the expulsion of a molecularly thin layer of alcohol is imaged in two dimensions. We analyze the dynamics of the expulsion process and discuss the physical mechanisms in terms of a model that includes the hydrodynamic flow in the two-dimensional liquid layer and the elastic properties of the substrates. We also discuss the optical resolution required to observe layering transitions in two dimensions and present a new design of a SFA optimized for these purposes.

Original language	Undefined
Pages (from-to)	105-113
Journal	Colloids and surfaces A: Physicochemical and engineering aspects
Volume	206
Issue number	1-3
DOIs	https://doi.org/10.1016/S0927-7757(02)00083-3
Publication status	Published - 2002

Keywords

IR-57260

Access to Document

10.1016/S0927-7757(02)00083-3

Cite this

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title = "Two-dimensional observation of drainage and layering transitions in confined liquids",

abstract = "We used a surface forces apparatus (SFA) to investigate the drainage of thin films of undecanol from a pore consisting of two atomically smooth mica sheets. Time-resolved images of the contact area during drainage show an initial elastohydrodynamic deformation of the substrates. In the late stage, the expulsion of a molecularly thin layer of alcohol is imaged in two dimensions. We analyze the dynamics of the expulsion process and discuss the physical mechanisms in terms of a model that includes the hydrodynamic flow in the two-dimensional liquid layer and the elastic properties of the substrates. We also discuss the optical resolution required to observe layering transitions in two dimensions and present a new design of a SFA optimized for these purposes.",

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T1 - Two-dimensional observation of drainage and layering transitions in confined liquids

AU - Mugele, Friedrich Gunther

AU - Becker, T.

AU - Klingner, A.

AU - Salmeron, M.

PY - 2002

Y1 - 2002

N2 - We used a surface forces apparatus (SFA) to investigate the drainage of thin films of undecanol from a pore consisting of two atomically smooth mica sheets. Time-resolved images of the contact area during drainage show an initial elastohydrodynamic deformation of the substrates. In the late stage, the expulsion of a molecularly thin layer of alcohol is imaged in two dimensions. We analyze the dynamics of the expulsion process and discuss the physical mechanisms in terms of a model that includes the hydrodynamic flow in the two-dimensional liquid layer and the elastic properties of the substrates. We also discuss the optical resolution required to observe layering transitions in two dimensions and present a new design of a SFA optimized for these purposes.

AB - We used a surface forces apparatus (SFA) to investigate the drainage of thin films of undecanol from a pore consisting of two atomically smooth mica sheets. Time-resolved images of the contact area during drainage show an initial elastohydrodynamic deformation of the substrates. In the late stage, the expulsion of a molecularly thin layer of alcohol is imaged in two dimensions. We analyze the dynamics of the expulsion process and discuss the physical mechanisms in terms of a model that includes the hydrodynamic flow in the two-dimensional liquid layer and the elastic properties of the substrates. We also discuss the optical resolution required to observe layering transitions in two dimensions and present a new design of a SFA optimized for these purposes.

KW - IR-57260

U2 - 10.1016/S0927-7757(02)00083-3

DO - 10.1016/S0927-7757(02)00083-3

M3 - Article

SN - 0927-7757

VL - 206

SP - 105

EP - 113

JO - Colloids and surfaces A: Physicochemical and engineering aspects

JF - Colloids and surfaces A: Physicochemical and engineering aspects

IS - 1-3

ER -