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 Mossbauer 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.
|Journal||Czechoslovak Journal of Physics|
|Number of pages||4|
|Publication status||Published - 2004|
- nanocrystalline powders
- Mossbauer spectrometry