In Situ Electron Diffraction Investigation of Solid State Synthesis of Co-In2O3 Ferromagnetic Nanocomposite Thin Films : научное издание | Научно-инновационный портал СФУ

In Situ Electron Diffraction Investigation of Solid State Synthesis of Co-In2O3 Ferromagnetic Nanocomposite Thin Films : научное издание

Тип публикации: статья из журнала

Год издания: 2019

Аннотация: In situ electron diffraction was used to study structural transformations during the formation of Co-In2O3 ferromagnetic nanocomposite thin films in a thermite reaction of In/Co3O4 bilayer thin films. Heating was performed from room temperature to 600°C at a rate of 4°C/min, while simultaneously electron diffraction patterns were recorded at a speed of 4 frames/min. This made it possible to determine the initiation, 185°C, and finishing, 550°C, temperatures of the solid-state synthesis, as well as the change in the phase composition during the thermite reaction. The synthesized Co-In2O3 film nanocomposite contained ferromagnetic cobalt nanoclusters surrounded by an In2O3 layer, with an average size of 20 nm, and had a magnetization of 400 emu/cm3 and a coercivity of 50 Oe at room temperature. The estimate of the effective interdiffusion coefficient of the reaction suggests that the main mechanism for the formation of the Co-In2O3 nanocomposite is diffusion along the grain boundaries and dislocations.

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Издание

Журнал: Journal of the Minerals Metals & Materials Society (JOM)

ISSN журнала: 10474838

Издатель: J O M Institute

Авторы

  • Bykova L.E. (Kirensky Institute of Physics,Federal Research Center KSC SB RAS)
  • Zharkov S.M. (Siberian Federal University)
  • Myagkov V.G. (Kirensky Institute of Physics,Federal Research Center KSC SB RAS)
  • Zhigalov V.S. (Kirensky Institute of Physics,Federal Research Center KSC SB RAS)
  • Patrin G.S. (Siberian Federal University)

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