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Kozhitov L. V. The Structure and Magnetic Properties Metal-carbon Nanocomposites FeCo /C on Based of Polyacrylonitrile [Електронний ресурс] / L. V. Kozhitov, D. G. Muratov, V. G. Kostishin, A. G. Savchenko, I. V. Schetinin, V. A. Tarala, A. V. Popkova, L. M. Chervjakov // Журнал нано- та електронної фізики. - 2014. - Т. 6, № 3. - С. 03039-1-03039-4. - Режим доступу: http://nbuv.gov.ua/UJRN/jnef_2014_6_3_41 For the first time in the conditions of the IR pyrolysis precursor based on polyacrylonitrile, cobalt acetate and acetylacetonate iron (ratio of metals in precursors Fe:Co = 3:1) metal-carbon nanocomposites have been obtained, which are carbon matrix with graphite-like structure, containing buried her nanoparticles of intermetallids of FeCo. It is shown that the phase formation FeCo occurs in the temperature range of obtaining 500 - 600 degrees centigrade, at <$ET~symbol Г ~500> degrees centigrade are only two distinct phases metals: HCC-With and BCC Fe. In the structure of nanocomposites obtained at <$ET~symbol У~600> degrees centigrade, at the same time there are nanoparticles of intermetallides and FeCo little content phase fсс-Co or solid solution of cobalt. It is determined that the composition of a metal component nanocomposite satisfies the ratio of Fe, Co, originally specified.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. Identification of alloy nanoparticles was carried out by the values of the lattice parameter, which was determined by X-ray analysis and was 0,3533 nm (values of the lattice parameter for Ni 0,3529 nm), this corresponds intermetallics Ni0,5Co0,5. By XRD analysis it was determined that an increase in the synthesis temperature of 500 to <$E800~symbol Р roman C> leads to increase in average size of coherent dissipation of crystallite metal phase.
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Kozhitov L. V. The Structure and Magnetic Properties Metal-carbon Nanocomposites NiCo / C on Based of Polyacrylonitrile [Електронний ресурс] / L. V. Kozhitov, D. G. Muratov, S. G. Emelyanov, V. G. Kostishin, E. V. Yakushko, A. G. Savchenko, I. V. Schetinin, E. P. Mosyakina // Журнал нано- та електронної фізики. - 2014. - Т. 6, № 3. - С. 03040-1-03040-3. - Режим доступу: http://nbuv.gov.ua/UJRN/jnef_2014_6_3_42 For the first time in the conditions of the IR pyrolysis precursor based on polyacrylonitrile, cobalt acetate and acetylacetonate iron (ratio of metals in precursors Fe:Co = 3:1) metal-carbon nanocomposites have been obtained, which are carbon matrix with graphite-like structure, containing buried her nanoparticles of intermetallids of FeCo. It is shown that the phase formation FeCo occurs in the temperature range of obtaining 500 - 600 degrees centigrade, at <$ET~symbol Г ~500> degrees centigrade are only two distinct phases metals: HCC-With and BCC Fe. In the structure of nanocomposites obtained at <$ET~symbol У~600> degrees centigrade, at the same time there are nanoparticles of intermetallides and FeCo little content phase fсс-Co or solid solution of cobalt. It is determined that the composition of a metal component nanocomposite satisfies the ratio of Fe, Co, originally specified.By method of IR-pyrolysis the precursor of polyacrylonitrile and compounds of cobalt and nickel metalcarbon nanocomposites were obtained, representing nanoparticles of alloy NiCo, dispersed in nanocrystalline carbon matrix. Identification of alloy nanoparticles was carried out by the values of the lattice parameter, which was determined by X-ray analysis and was 0,3533 nm (values of the lattice parameter for Ni 0,3529 nm), this corresponds intermetallics Ni0,5Co0,5. By XRD analysis it was determined that an increase in the synthesis temperature of 500 to <$E800~symbol Р roman C> leads to increase in average size of coherent dissipation of crystallite metal phase.
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