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Reconfigurable surface micropatterns based on the magnetic field-induced shape memory effect in magnetoactive elastomers
ID Lovšin, Matija (Author), ID Brandl, Dominik (Author), ID Glavan, Gašper (Author), ID Belyaeva, Inna A. (Author), ID Cmok, Luka (Author), ID Čoga, Lucija (Author), ID Kalin, Mitjan (Author), ID Shamonin, Mikhail (Author), ID Drevenšek Olenik, Irena (Author)

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Abstract
A surface relief grating with a period of 30 µm is embossed onto the surface of magnetoactive elastomer (MAE) samples in the presence of a moderate magnetic field of about 180 mT. The grating, which is represented as a set of parallel stripes with two different amplitude reflectivity coefficients, is detected via diffraction of a laser beam in the reflection configuration. Due to the magnetic-field-induced plasticity effect, the grating persists on the MAE surface for at least 90 h if the magnetic field remains present. When the magnetic field is removed, the diffraction efficiency vanishes in a few minutes. The described effect is much more pronounced in MAE samples with larger content of iron filler (80 wt%) than in the samples with lower content of iron filler (70 wt%). A simple theoretical model is proposed to describe the observed dependence of the diffraction efficiency on the applied magnetic field. Possible applications of MAEs as magnetically reconfigurable diffractive optical elements are discussed. It is proposed that the described experimental method can be used as a convenient tool for investigations of the dynamics of magnetically induced plasticity of MAEs on the micrometer scale.

Language:English
Keywords:magnetoactive elastomers, microstructuring, optical diffraction, shape memory effect, surface microstructuring
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
FMF - Faculty of Mathematics and Physics
Publication status:Published
Publication version:Version of Record
Year:2021
Number of pages:13 str.
Numbering:Vol. 13, iss. 24, art. 4422
PID:20.500.12556/RUL-136939 This link opens in a new window
UDC:539.211
ISSN on article:2073-4360
DOI:10.3390/polym13244422 This link opens in a new window
COBISS.SI-ID:90149123 This link opens in a new window
Publication date in RUL:25.05.2022
Views:581
Downloads:86
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Record is a part of a journal

Title:Polymers
Shortened title:Polymers
Publisher:Molecular Diversity Preservation International
ISSN:2073-4360
COBISS.SI-ID:517951257 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:16.12.2021

Secondary language

Language:Slovenian
Keywords:magnetoaktivni elastomeri, mikrostrukturiranje, uklon svetlobe, oblikovni spomin

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P1-0192
Name:Svetloba in snov

Funder:ARRS - Slovenian Research Agency
Project number:P2-0231
Name:Tribologija

Funder:ARRS - Slovenian Research Agency
Project number:J1-3006
Name:Magnetno odzivne površine za manipulacijo svetlobe in tekočin

Funder:ARRS - Slovenian Research Agency
Project number:BI-DE/20-21-016

Funder:Other - Other funder or multiple funders
Funding programme:German Academic Exchange Service
Project number:57513473

Funder:Other - Other funder or multiple funders
Funding programme:Deutsche Forschungsgemeinschaft
Project number:389008375

Funder:Other - Other funder or multiple funders
Funding programme:Deutsche Forschungsgemeinschaft
Project number:437391117

Funder:Other - Other funder or multiple funders
Funding programme:Deutsche Forschungsgemeinschaft
Project number:466920132

Funder:Other - Other funder or multiple funders
Funding programme:State Conference of Women and Equality Officers at Bavarian Universities (LaKoF Bayern), Ph.D. scholarship

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