Open Access
Polymers, volume 13, issue 12, pages 2002
Dielectric Spectroscopy of Hybrid Magnetoactive Elastomers
Publication type: Journal Article
Publication date: 2021-06-18
PubMed ID:
34207347
General Chemistry
Polymers and Plastics
Abstract
Dielectric properties of two series of magnetoactive elastomers (MAEs) based on a soft silicone matrix containing 35 vol% of magnetic particles were studied experimentally in a wide temperature range. In the first series, a hybrid filler representing a mixture of magnetically hard NdFeB particles of irregular shape and an average size of 50 μm and magnetically soft carbonyl iron (CI) of 4.5 μm in diameter was used for MAE fabrication. MAEs of the second series contained only NdFeB particles. The presence of magnetically hard NdFeB filler made it possible to passively control MAE dielectric response by magnetizing the samples. It was shown that although the hopping mechanism of MAEs conductivity did not change upon magnetization, a significant component of DC conductivity appeared in the magnetized MAEs presumably due to denser clustering of interacting particles resulting in decreasing interparticle distances. The transition from a non-conducting to a conducting state was more pronounced for hybrid MAEs containing both NdFeB and Fe particles with a tenfold size mismatch. Hybrid MAEs also demonstrated a considerable increase in the real part of the complex relative permittivity upon magnetization and its asymmetric behavior in external magnetic fields of various directions. The effects of magnetic filler composition and magnetization field on the dielectric properties of MAEs are important for practical applications of MAEs as elements with a tunable dielectric response.
Citations by journals
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2
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Polymers
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Polymers
2 publications, 33.33%
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Journal of Molecular Liquids
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Journal of Molecular Liquids
1 publication, 16.67%
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Soft Matter
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Soft Matter
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ACS Applied Polymer Materials
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1 publication, 16.67%
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Journal of Magnetism and Magnetic Materials
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1 publication, 16.67%
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Citations by publishers
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1
2
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 33.33%
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Elsevier
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Elsevier
2 publications, 33.33%
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Royal Society of Chemistry (RSC)
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Royal Society of Chemistry (RSC)
1 publication, 16.67%
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American Chemical Society (ACS)
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American Chemical Society (ACS)
1 publication, 16.67%
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1
2
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- We do not take into account publications that without a DOI.
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Shevchenko V. et al. Dielectric Spectroscopy of Hybrid Magnetoactive Elastomers // Polymers. 2021. Vol. 13. No. 12. p. 2002.
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Shevchenko V., Stepanov G. V., Kramarenko E. Dielectric Spectroscopy of Hybrid Magnetoactive Elastomers // Polymers. 2021. Vol. 13. No. 12. p. 2002.
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TY - JOUR
DO - 10.3390/polym13122002
UR - https://doi.org/10.3390%2Fpolym13122002
TI - Dielectric Spectroscopy of Hybrid Magnetoactive Elastomers
T2 - Polymers
AU - Shevchenko, V.G.
AU - Stepanov, Gennady V.
AU - Kramarenko, E.Yu.
PY - 2021
DA - 2021/06/18 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 2002
IS - 12
VL - 13
PMID - 34207347
SN - 2073-4360
ER -
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@article{2021_Shevchenko,
author = {V.G. Shevchenko and Gennady V. Stepanov and E.Yu. Kramarenko},
title = {Dielectric Spectroscopy of Hybrid Magnetoactive Elastomers},
journal = {Polymers},
year = {2021},
volume = {13},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {jun},
url = {https://doi.org/10.3390%2Fpolym13122002},
number = {12},
pages = {2002},
doi = {10.3390/polym13122002}
}
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Shevchenko, V.G., et al. “Dielectric Spectroscopy of Hybrid Magnetoactive Elastomers.” Polymers, vol. 13, no. 12, Jun. 2021, p. 2002. https://doi.org/10.3390%2Fpolym13122002.