?-Fe nanopowder synthesised in low-pressure microwave plasma and studied by Mössbauer spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00375153" target="_blank" >RIV/68378271:_____/11:00375153 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/11:00375153
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/303/1/012090" target="_blank" >http://dx.doi.org/10.1088/1742-6596/303/1/012090</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/303/1/012090" target="_blank" >10.1088/1742-6596/303/1/012090</a>

Result language
angličtina
Original language name
?-Fe nanopowder synthesised in low-pressure microwave plasma and studied by Mössbauer spectroscopy
Original language description
An iron-based nanocomposite has been prepared by the microwave plasma method: Fe(CO)5 vapour was introduced into an argon discharge at 1 kPa. The synthesised nanopowder was passivated in situ with a mixture of Ar and air. The as-prepared nanopowder was characterised by XRD, TEM, Raman and Mössbauer spectroscopies. In the XRD pattern of the nanopowder the ?-Fe (d_XRD = 14 nm, 76 wt.%) and Fe(3)O(4) (d_XRD = 3 nm, 24 wt.%) phases were identified only. ?-Fe cores covered with oxide shells were observed under TEM. A huge increase of Mössbauer absorption was observed after the sample was cooled down to 5 K. The results of magnetic and thermal properties studies at low and high temperature are presented. The heat capacity of the sample exhibited an unexpectedly high value of 599 J/kg/K.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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