Kinetics of abrasive-reactive nanocomposite powder synthesis in the SiO2 − C/S system

  • Farit Urakaev V.S. Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk
  • Tlek Ketegenov al-Farabi Kazakh National University
  • Bolat Uralbekov al-Farabi Kazakh National University
  • Mukhambetkali Burkitbayev al-Farabi Kazakh National University
Keywords: steel planetary mill, mechanical activation, silica, graphite, sulfur, abrasive-reactive wear, cementite, pyrite, synthesis, kinetics

Abstract

In this study, the syntheses of cementite (Fe3C) and pyrite (FeS2) have been performed by mechanical activation of a mixture of graphite or sulfur with amorphous or crystalline silica in a planetary ball mill AGO-2 with steel fittings. XRD analysis was used to record products and changes of systems components after mechanical activation of the studied systems. The formation of nanocomposites based on cementite (or pyrite) has been recorded and the quantitative characteristics of abrasive-reactive wear of steel milling tools have been evaluated.

It has been demonstrated the possibility of steel material reaction of milling tools for direct mechanochemical preparation of composite based on cementite using abrasive properties of silica modifications. It has obtained nanocomposites based on pyrite and glass matrix during mechanical activation of quartz glass and sulfur in a time of 1-2 orders of magnitude lower than traditional mechanical alloying powders of iron and sulfur. It can be noted that any scrap metal and ceramic products can be used as milling tools. This significantly enhances the ability of the proposed method of abrasive-reactive nanowear of milling tools materials of mechanochemical reactors and processed materials.

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Published
2015-03-31
How to Cite
Urakaev, F., Ketegenov, T., Uralbekov, B., & Burkitbayev, M. (2015). Kinetics of abrasive-reactive nanocomposite powder synthesis in the SiO2 − C/S system. Chemical Bulletin of Kazakh National University, (1), 52-63. https://doi.org/https://doi.org/10.15328/cb577
Section
Inorganic Chemistry