Pauliac-Vaujour, E;
Stannard, A;
Martin, CP;
Blunt, MO;
Notingher, I;
Moriarty, PJ;
Vancea, I;
(2008)
Fingering instabilities in dewetting nanofluids.
Physical Review Letters
, 100
(17)
, Article 176102. 10.1103/PhysRevLett.100.176102.
![[thumbnail of 1384926.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
1384926.pdf Download (844kB) |
Abstract
The growth of fingering patterns in dewetting nanofluids (colloidal solutions of thiol-passivated gold nanoparticles) has been followed in real time using contrast-enhanced video microscopy. The fingering instability on which we focus here arises from evaporatively driven nucleation and growth in a nanoscopically thin precursor solvent film behind the macroscopic contact line. We find that well-developed isotropic fingering structures only form for a narrow range of experimental parameters. Numerical simulations, based on a modification of the Monte Carlo approach introduced by Rabani et al. [Nature (London) 426, 271 (2003)10.1038/nature02087], reproduce the patterns we observe experimentally.
| Type: | Article |
|---|---|
| Title: | Fingering instabilities in dewetting nanofluids. |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.100.176102 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.100.176102 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1384926 |
Archive Staff Only
 |
View Item |
