Библиографическое описание:In Situ Electron Diffraction Investigation of Solid State Synthesis of Co-In2O3 Ferromagnetic Nanocomposite Thin Films : научное издание / L. E. Bykova [et al.]. - Текст : непосредственный // JOM. - 2020. - Vol. 72, Is. 6. - P. 2139-2145. - Cited Reference Count: 49. - The investigation was conducted under the partial financial support of the Russian Foundation for Basic Research (Grants #18-03-01173 and #19-43-240003). - JUN. - ISSN 1047-4838. - ISSN 1543-1851, DOI 10.1007/s11837-019-03919-5.
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 degrees C at a rate of 4 degrees 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 degrees C, and finishing, 550 degrees 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/km(3) and a coercivity of 50 Oe at room temperature. The estimate of the effective inter diffusion 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.
