Solid-state synthesis of alpha-Fe and iron carbide nanoparticles by thermal treatment of amorphous Fe2O3

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F09%3A00341011" target="_blank" >RIV/68081723:_____/09:00341011 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Solid-state synthesis of alpha-Fe and iron carbide nanoparticles by thermal treatment of amorphous Fe2O3
Original language description
Thermal treatment of amorphous iron(III) oxide nanopowder (2?3 nm) in various atmospheres is presented as a simple route towards ?-Fe and iron carbides nanoparticles. The chemical composition and size of nanoparticles can be controlled using the reactiontemperature, annealing time and atmosphere (hydrogen, carbon monoxide, hydrocarbons). To monitor the structure, phase composition, size, morphology and magnetic properties of nanoparticles, XRD, Mössbauer spectroscopy, and magnetic measurements were carried out. The measurements of temperature dependence of magnetic moment yield information on the critical temperatures of magnetic and phase transformations. Application of hydrogen atmosphere results in the formation of ?-Fe, while iron carbides (Fe3C)can be obtained in atmospheres of carbon monoxide or hydrocarbons.
Czech name
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Czech description
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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
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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