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Carbon-Coated Nickel Nanoparticles: Effect on the Magnetic and Electric Properties of Composite Materials

1
Faculty of Physics, Vilnius University, Sauletekio 9, Vilnius LT-10222, Lithuania
2
Research Institute for Nuclear Problems of Belarusian State University, Bobruiskaya Str., 11, Minsk 220030, Belarus
3
Tomsk Polytechnic University, Lenin Ave, 30, Tomsk 634050, Russia
4
Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus, P. Brovka Str. 19, Minsk 220072, Belarus
5
Consiglio Istituto per i Polimeri, Compositi e Biomaterialii, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
6
M.N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Yekaterinburg 620137, Russia
7
Institute of Natural Sciences, Ural Federal University, Yekaterinburg 620083, Russia
8
Adamas Nanotechnology Inc, 8100 Brownleigh Dr, Raleigh, NC 27617, USA
*
Author to whom correspondence should be addressed.
Coatings 2018, 8(5), 165; https://doi.org/10.3390/coatings8050165
Received: 23 March 2018 / Revised: 18 April 2018 / Accepted: 25 April 2018 / Published: 27 April 2018
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Abstract

Nickel nanoparticles coated with few layers of carbon have been embedded into the polydimethylsiloxane (PDMS) matrix in concentrations up to 11 vol %. Dielectric and magnetic properties of composite materials have been studied in wide frequency (20 Hz–1 MHz) and temperature (130–430 K) ranges. It was demonstrated that the temperature behavior of dielectric properties is determined by glass transitions in the PDSM matrix below 200 K and the Maxwell–Wagner relaxation above room temperature. The possibility of using fabricated composites on the basis of the PDMS matrix for producing a wide range of passive electromagnetic components, such as frequency-selective filters, wide-band detectors/sensors of a bolometric type, and even electromagnetic “black holes” is also discussed. View Full-Text
Keywords: composite materials; dielectric properties; magnetic properties; glass transition; superparamagnetic particles composite materials; dielectric properties; magnetic properties; glass transition; superparamagnetic particles
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Plyushch, A.; Macutkevič, J.; Banys, J.; Kuzhir, P.; Kalanda, N.; Petrov, A.; Silvestre, C.; Uimin, M.A.; Yermakov, A.Y.; Shenderova, O. Carbon-Coated Nickel Nanoparticles: Effect on the Magnetic and Electric Properties of Composite Materials. Coatings 2018, 8, 165.

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