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Plasmodynamic synthesis of ultradispersed iron oxides

  • Physics of Magnetic Phenomena
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Russian Physics Journal Aims and scope

Results of a pilot study of direct plasmochemical synthesis of ultradispersed crystalline iron oxide phases in a high-speed pulse jet of iron-containing electrodischarge plasma that effluxes into a closed volume with the air atmosphere are presented. The synthesized powder contains all main oxide phases, including magnetite Fe3O4, maghemite γ-Fe2O3, and hematite α-Fe2O3. An important feature of the method is the formation of the metastable ε-Fe2O3 phase under normal conditions. The minimum average size of coherently diffracting domains (CDD) (particles) of the magnetic phases is observed when they are synthesized at air pressure of 1.0 atm. The powders have high magnetic properties comparable with those of compact iron oxides.

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Authors and Affiliations

  1. Institute of Power Engineering at National Research Tomsk Polytechnic University, Tomsk, Russia

    A. A. Sivkov, A. S. Saigash & D. Yu. Gerasimov

  2. National Research Tomsk State University, Tomsk, Russia

    E. P. Naiden

Authors
  1. A. A. Sivkov
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  2. E. P. Naiden
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  3. A. S. Saigash
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  4. D. Yu. Gerasimov
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Corresponding author

Correspondence to A. A. Sivkov.

Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 3–8, February, 2013.

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Sivkov, A.A., Naiden, E.P., Saigash, A.S. et al. Plasmodynamic synthesis of ultradispersed iron oxides. Russ Phys J 56, 111–117 (2013). https://doi.org/10.1007/s11182-013-0005-9

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  • DOI: https://doi.org/10.1007/s11182-013-0005-9

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