Adaptive Magneto-Responsive Surfaces Fabricated by Laser-Based Microstructuring
- Adaptive surface microstructures are used extensively in nature to control various surface properties such as wettability, adhesion, self-cleaning, drag reduction, etc. Regulation of these properties can be achieved with the appropriate employment of a multitude of smart materials, whose characteristics/response can be controlled by noncontact stimuli, e.g., light, heat, or magnetic field. One of the very promising magneto-regulable smart materials are magnetoactive elastomers (MAEs). They are comprised of a compliant polymer matrix with embedded micrometer-sized ferromagnetic particles. The particles interact with each other and a magnetic field. This results in remarkable tunability of the physical properties of MAEs. This paper reports a fast, resilient, and tailored method for direct surface micromachining of MAEs that enables micro-structuring without mechanical contact between the tool and the material, bypassing the usual constraints of conventional fabrication methods. It is shown that it is possible to fabricate a large variety of different microstructure geometries whose precision is limited predominantly by the size of magnetic particles. Lamellar structures with a high aspect ratio (up to 6:1) oriented either perpendicularly to the surface, can be strongly bent by applying magnetic fields in the range of 0–250 mT.
Author: | Gaia Kravanja, Inna A. Belyaeva, Luka Hribar, Irena Drevenšek-OlenikORCiD, Mikhail Shamonin (Chamonine)ORCiDGND, Matija Jezeršek |
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DOI: | https://doi.org/10.1115/SMASIS2022-90742 |
ISBN: | 978-0-7918-8627-4 |
Parent Title (English): | Proceedings of the ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS 2022): September 12-14, 2022, Dearborn, Michigan |
Publisher: | ASME |
Document Type: | conference proceeding (article) |
Language: | English |
Year of first Publication: | 2022 |
Release Date: | 2022/12/19 |
Tag: | adaptive surfaces; laser microstructuring; magneto-responsive microstructures; magnetoactive elastomers |
Article Number: | V001T01A006 |
Pagenumber: | 6 |
Institutes: | Fakultät Elektro- und Informationstechnik |
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen | |
Begutachtungsstatus: | peer-reviewed |
research focus: | Produktion und Systeme |
Licence (German): | Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG |