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Iron-based nanopowders containing α-Fe, Fe(3)C, and γ-Fe particles synthesised in microwave torch plasma and investigated with Mössbauer spectroscopy
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SYSNO ASEP 0369472 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Iron-based nanopowders containing α-Fe, Fe(3)C, and γ-Fe particles synthesised in microwave torch plasma and investigated with Mössbauer spectroscopy Author(s) David, Bohumil (UFM-A) RID
Pizúrová, Naděžda (UFM-A) RID, ORCID
Schneeweiss, Oldřich (UFM-A) RID, ORCID
Kudrle, V. (CZ)
Jašek, O. (CZ)
Synek, P. (CZ)Number of authors 6 Source Title Japanese Journal of Applied Physics. - : Institute of Physics Publishing - ISSN 0021-4922
Roč. 50, 8 PART 2 (2011), 08JF11/1-08JF1/5Number of pages 5 s. Language eng - English Country JP - Japan Keywords nanoparticles ; microvawe plasma ; gamma-Fe ; gamma-Fe4N ; Mossbauer spectroscopy Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA202/08/0178 GA ČR - Czech Science Foundation (CSF) 1M0512 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000294339500040 DOI 10.1143/JJAP.50.08JF11 Annotation 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, Fe(3)C, and Fe(3)O(4)/gamma-Fe(2)O(3) 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. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
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