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Title | The Influence of Synthesis Temperature on the Structure, Composition and Magnetic Properties of Nanocomposites NiCo/C |
Authors |
Muratov, D.G.
Kozhitov, L.V. Emelyanov, S.G. Yakushko, E.V. Bulatov, M.F. |
ORCID | |
Keywords |
Metal-carbon nanocomposites Nanoparticles NiCo Magnetic properties of nanoparticles IR-heating |
Type | Article |
Date of Issue | 2015 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/44491 |
Publisher | Sumy State University |
License | Copyright not evaluated |
Citation | D.G. Muratov, L.V. Kozhitov, S.G. Emelyanov, et al., J. Nano- Electron. Phys. 7 No 4, 04071 (2015) |
Abstract |
By method of IR-pyrolysis the precursor of polyacrylonitrile and compounds of cobalt and nickel metalcarbon
nanocomposites were obtained, representing nanoparticles of alloy NiCo, dispersed in nanocrystalline
carbon matrix. NiCo / C nanocomposites are ferromagnets. Magnetization and the coercive force depends
on the size and composition of the alloy nanoparticles NiCo. The average size of metal nanoparticles
is determined by the synthesis temperature and in range of 350-800 °C is 10-80 nm, respectively. According
to the results of TEM it was detected that with increasing synthesis temperature the maximum synthesis
of nanoparticles size distribution shifts to larger sizes. The magnetization and coercivity depend on
the size and composition of the nanoparticles of alloy NiCo. With increasing synthesis temperature from
350 to 800 °C the magnetization increases from 0.055 to 17 A·m2/kg. |
Appears in Collections: |
Журнал нано- та електронної фізики (Journal of nano- and electronic physics) |
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Muratov_Metal_carbon_nanocomposites.pdf | 407.64 kB | Adobe PDF | 7332314 |
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