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Thermally activated motion of a contact line over defects

Abstract:

At the nanometer scale, the motion of a contact line separating a dry from a wet region is limited by the presence of surface heterogeneities that pin it. Here we revisit the seminal model proposed by Joanny and de Gennes to include the influence of thermal noise and viscosity using a Langevin model with two degrees of freedom: the average position of the contact line and its distortion. We identify the conditions under which the dynamics in a velocity-driven experiment can in fact be describ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1039/c7sm02211e

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Chemistry; Physical and Theoretical Chemistry
Role:
Author
Publisher:
Royal Society of Chemistry Publisher's website
Journal:
Soft Matter Journal website
Volume:
14
Issue:
9
Pages:
1581-1595
Publication date:
2018-01-26
Acceptance date:
2018-01-24
DOI:
EISSN:
1744-6848
ISSN:
1744-683X
Pubs id:
pubs:825085
URN:
uri:03baae68-1054-4385-9b92-31d5410b09d7
UUID:
uuid:03baae68-1054-4385-9b92-31d5410b09d7
Local pid:
pubs:825085
Language:
English

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