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Study of Magnetic Properties of Nano-powders Prepared by Pyrite → Troilite Transformation via High Energy Milling

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Czechoslovak Journal of Physics Aims and scope

Abstract

The preparation of nanocrystalline troilite by high-energy milling of FeS2 sulphide with elemental Fe acting as reducing element is reported. X-ray difractometry was used in order to determine the presence of different phases in investigated samples. This technique allowed us to identify the formation of troilite FeS together with residual Fe metal after relatively short milling times. The kinetic studies performed by Mössbauer spectrometry and VSM magnetometry enabled us to follow the progress of nanocrystalline magnetic phase formation in more details. It was shown that the pyrite→troilite transformation is almost finished already after 25 minutes of high-energy milling.

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Authors and Affiliations

  1. Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 043 53 Košice, Slovakia

    P. Baláž, A. Aláčová & E. Godočíková

  2. Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 043 53 Košice, Slovakia

    J. Kováč & I. Škorvánek

  3. Technical University of Denmark, Department of Physics, 2800 Lyngby, Denmark

    J.Z. Jiang

Authors
  1. P. Baláž
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  2. A. Aláčová
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  3. E. Godočíková
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  4. J. Kováč
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  5. I. Škorvánek
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  6. J.Z. Jiang
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Baláž, P., Aláčová, A., Godočíková, E. et al. Study of Magnetic Properties of Nano-powders Prepared by Pyrite → Troilite Transformation via High Energy Milling. Czech J Phys 54 (Suppl 4), 197–200 (2004). https://doi.org/10.1007/s10582-004-0063-x

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  • DOI: https://doi.org/10.1007/s10582-004-0063-x

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