Absence of evidence of decomposition of during mechanical grinding

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The appearance of bcc Fe after grinding (Formula presented) for a long time has been formerly interpreted as being due to the decomposition of the thermodynamically stable intermetallic compound when the crystallite size is reduced to a few nanometers. The results of our control experiments performed by tungsten-carbide milling tools show that the appearance of bcc Fe has no relation to the grain size but should be connected to contamination when tools made of steel are used to pulverize this material. Mössbauer spectroscopy was applied to search for the appearance of bcc Fe while changes in the grain size were checked by x-ray diffraction and transmission electron microscopy.

Original languageEnglish
Pages (from-to)29-32
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number1
Publication statusPublished - Jan 1 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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