Study of the iron nanoparticles phase transformation during thermal annealing

  • Artem Leonidovich Kozlovskiy L.N. Gumilyov Eurasian National University, Astana
  • Jumat Beisembekovich Kargin L.N. Gumilyov Eurasian National University, Astana
  • Malik Zhenisovich Kokarev L.N. Gumilyov Eurasian National University, Astana
  • Daut Galimzhanovich Mukhambetov Almaty Academy of Economic and Statistics, Almaty

Abstract

Change in structural properties and phase composition of nanoparticles based on iron oxide was researched in the paper. As a result of conducted studies it was found that during heat treatment oxide phases of (γ-Fe2O3) and α-Fe2O3 maghemite were formed in oxygen atmosphere. Researches of powder array magnetization were showed that the hysteresis loop movement had the form characteristic for ferromagnetic materials. Additionally, loops obtained at different directions of the magnetic field have different characters, which indicate the magnetic anisotropy presence in the samples.

Author Biography

Artem Leonidovich Kozlovskiy, L.N. Gumilyov Eurasian National University, Astana

Institute of Nuclear Physics, Almaty

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Published
2017-03-31
How to Cite
KOZLOVSKIY, Artem Leonidovich et al. Study of the iron nanoparticles phase transformation during thermal annealing. Chemical Bulletin of Kazakh National University, [S.l.], n. 1, p. 16-25, mar. 2017. ISSN 2312-7554. Available at: <http://bulletin.chemistry.kz/index.php/kaznu/article/view/796>. Date accessed: 24 june 2017. doi: https://doi.org/10.15328/cb796.
Section
Physical Chemistry and Electrochemistry

Keywords

наноструктуры, механохимический синтез, термический отжиг, фазовые превращения, наночастицы