Bohumil David, Naděžda Pizúrová, Oldřich Schneeweiss, Vít Kudrle, Ondřej Jašek, Petr Synek

Iron-Based Nanopowders Containing alpha-Fe, Fe3C, and gamma-Fe Particles Synthesised in Microwave Torch Plasma and Investigated with Mossbauer Spectroscopy

Japanese Journal of Applied Physics 50 (2011) 0000

Two Fe-based nanopowders were synthesised using microwave torch discharge at 1 bar. The main channel of the discharge was operating in Ar, which flowed through the central nozzle of an electrode, whereas the reactive mixture H-2/Fe(CO)(5) was added through a concentric outer nozzle. Besides rarely observed gamma-Fe particles (for the first sample: d(XRD) = 30 nm, 35 wt %; for the second sample: d(XRD) = 9 nm, 33wt %) samples also included alpha-Fe, Fe3C, and Fe3O4/gamma-Fe2O3 particles. The presence of gamma-Fe phase was proved by the interpretation of the XRD patterns and the Mossbauer spectra taken at 293 and 5 K.

You can also contact one of the authors: jasek@physics.muni.cz, synek@physics.muni.cz

Cited Articles

1. Zajíčková L., Eliáš M., Jašek O., Kudrle V., Frgala Z., Matějková J., Buršík J., Kadlečíková M.,
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