Nanocrystalline Fe/Zr alloys have been prepared after milling for 9 h the mixture of elemental Fe and Zr powders or the arc-melting produced Fe2Zr alloy by using mechanical alloying and mechanical milling techniques, respectively. X-ray and Mössbauer results of the Fe and Zr powders, mechanically alloyed, suggest that amorphous Fe2Zr phase and α-Fe(Zr) nanograins have been produced with relative concentrations of 91% and 9%, respectively. Conversely, the results of the mechanically milled Fe2Zr alloy indicate that nanograins of the Fe2Zr alloy have been formed, surrounded by a magnetic inter-granular phase that are simultaneously dispersed in a paramagnetic amorphous phase.
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Acknowledgements The authors would like to acknowledge the financial support provided by CSI-UNMSM under Project No. 041301011, FAPERJ-Brazil (Cientista do Nosso Estado), FINEP, FAPES and Latin American Center of Physics.
Copyright 2011 Elsevier B.V., All rights reserved.
- Fe Mössbauer spectroscopy
- Mechanical alloying
- Mechanical milling
- Nanostructured materials