Tunable Drop Splashing on Magnetoactive Elastomers
- The significant effect of an external dc magnetic field on the splashing behavior of ethanol drops impacting on the unstructured (flat) surface of soft magnetoactive elastomers (MAEs) is reported. The Weber number corresponding to the transition between the deposition and the splashing regime is reduced by ≈20% in a moderate magnetic field of ≈300 mT. Alongside this effect, a two-fold increase of the initial deceleration of the ejection sheet is observed for the softest sample. The main underlying mechanism for the observed phenomena is believed to be the magnetic-field-induced stiffening of the MAEs. Further possible mechanisms are magnetically induced changes in the surface roughness and magnetic-field-induced plasticity (magnetic shape memory effect). The potential application areas are magnetically regulable wetting and magneto-responsive surfaces for controlling the drop splashing.
Author: | Gaia KravanjaORCiD, Inna A. Belyaeva, Luka Hribar, Irena Drevenšek-OlenikORCiD, Matija JezeršekORCiD, Mikhail Shamonin (Chamonine)ORCiDGND |
---|---|
URN: | urn:nbn:de:bvb:898-opus4-24504 |
DOI: | https://doi.org/10.1002/admi.202100235 |
Parent Title (English): | Advanced Materials Interfaces |
Publisher: | Wiley |
Document Type: | Article |
Language: | English |
Year of first Publication: | 2021 |
Publishing Institution: | Ostbayerische Technische Hochschule Regensburg |
Release Date: | 2022/01/27 |
Volume: | 8 |
Issue: | 11 |
First Page: | 1 |
Last Page: | 7 |
Note: | Corresponding author: Mikhail Shamonin |
Institutes: | Fakultät Elektro- und Informationstechnik |
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen | |
Begutachtungsstatus: | peer-reviewed |
research focus: | Produktion und Systeme |
OpenAccess Publikationsweg: | Hybrid Open Access - OA-Veröffentlichung in einer Subskriptionszeitschrift/-medium |
Corresponding author der OTH Regensburg | |
Funding: | DEAL Wiley |
Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |