20.500.12556/RUL-136939 Reconfigurable surface micropatterns based on the magnetic field-induced shape memory effect in magnetoactive elastomers 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. magnetoactive elastomers microstructuring optical diffraction shape memory effect surface microstructuring magnetoaktivni elastomeri mikrostrukturiranje uklon svetlobe oblikovni spomin true false true Angleški jezik Slovenski jezik Članek v reviji 2022-05-25 10:57:44 2022-05-25 10:57:46 2022-09-15 04:14:28 0000-00-00 00:00:00 2021 0 0 13 str. iss. 24, art. 4422 Vol. 13 Dec. 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.211 2073-4360 10.3390/polym13244422 90149123 polymers-13-04422.pdf polymers-13-04422.pdf 1 AEF61AEC0C43DEF52FE296892A2BFD6A 602dbd75dbdd2c0a858c66150b4bc652d5cc54f0162ed69aedac064b3fcd61e4 b8a0bef9-dc09-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156758 https://www.mdpi.com/2073-4360/13/24/4422 0 757c03c1-dc09-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156757 Fakulteta za strojništvo Fakulteta za matematiko in fiziko 0 0 0