Experimental investigation of the de-pinning phenomenon on rough surfaces of volatile drops

K Sefiane; L Tadrist

doi:10.1016/j.icheatmasstransfer.2005.12.010

Experimental investigation of the de-pinning phenomenon on rough surfaces of volatile drops

K Sefiane, L Tadrist

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper we present the preliminary results on the de-pinning phenomenon of wetting volatile drops. Wetting properties are analysed by measuring the drop base and the dynamic apparent contact angle. Three cases are investigated: reduced pressure environment, controlled substrate temperature and surfactants solutions. The experimental results are compared to the existing theories to interpret the de-pinning phenomenon. The Young unbalanced force acting through surface tension near the triple line seems to be the controlling mechanism behind the de-pinning phenomenon of evaporating drops. (c) 2005 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	482-490
Number of pages	9
Journal	International Communications in Heat and Mass Transfer
Volume	33
Issue number	4
DOIs	https://doi.org/10.1016/j.icheatmasstransfer.2005.12.010
Publication status	Published - Apr 2006

Keywords

evaporation, wetting
drops
contact line, de-pinning, equilibrium
CONTACT-ANGLE
EVAPORATION
HYSTERESIS
SESSILE
AIR

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title = "Experimental investigation of the de-pinning phenomenon on rough surfaces of volatile drops",

abstract = "In this paper we present the preliminary results on the de-pinning phenomenon of wetting volatile drops. Wetting properties are analysed by measuring the drop base and the dynamic apparent contact angle. Three cases are investigated: reduced pressure environment, controlled substrate temperature and surfactants solutions. The experimental results are compared to the existing theories to interpret the de-pinning phenomenon. The Young unbalanced force acting through surface tension near the triple line seems to be the controlling mechanism behind the de-pinning phenomenon of evaporating drops. (c) 2005 Elsevier Ltd. All rights reserved.",

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doi = "10.1016/j.icheatmasstransfer.2005.12.010",

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T1 - Experimental investigation of the de-pinning phenomenon on rough surfaces of volatile drops

AU - Sefiane, K

AU - Tadrist, L

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N2 - In this paper we present the preliminary results on the de-pinning phenomenon of wetting volatile drops. Wetting properties are analysed by measuring the drop base and the dynamic apparent contact angle. Three cases are investigated: reduced pressure environment, controlled substrate temperature and surfactants solutions. The experimental results are compared to the existing theories to interpret the de-pinning phenomenon. The Young unbalanced force acting through surface tension near the triple line seems to be the controlling mechanism behind the de-pinning phenomenon of evaporating drops. (c) 2005 Elsevier Ltd. All rights reserved.

AB - In this paper we present the preliminary results on the de-pinning phenomenon of wetting volatile drops. Wetting properties are analysed by measuring the drop base and the dynamic apparent contact angle. Three cases are investigated: reduced pressure environment, controlled substrate temperature and surfactants solutions. The experimental results are compared to the existing theories to interpret the de-pinning phenomenon. The Young unbalanced force acting through surface tension near the triple line seems to be the controlling mechanism behind the de-pinning phenomenon of evaporating drops. (c) 2005 Elsevier Ltd. All rights reserved.

KW - evaporation, wetting

KW - drops

KW - contact line, de-pinning, equilibrium

KW - CONTACT-ANGLE

KW - EVAPORATION

KW - HYSTERESIS

KW - SESSILE

KW - AIR

U2 - 10.1016/j.icheatmasstransfer.2005.12.010

DO - 10.1016/j.icheatmasstransfer.2005.12.010

M3 - Article

VL - 33

SP - 482

EP - 490

JO - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

SN - 0735-1933

IS - 4

ER -