Synthesis of nanocrystalline magnetite by mechanical alloying of iron and hematite

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F04%3A00100762" target="_blank" >RIV/61388980:_____/04:00100762 - 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
Synthesis of nanocrystalline magnetite by mechanical alloying of iron and hematite
Original language description
The synthesis of magnetite has been studied by mechanical alloying in an inert atmosphere of a stoichiometric mixture of micrometric particle size iron and hematite powders. The final products have been characterised by chemical analysis, SEM, TEM, XRD,Mossbauer spectroscopy as well as specific surface and magnetic measurements. The magnetite obtained in this way exhibits a high magnetic hardness. The formation of a wustite layer on the magnetite core, because of the reaction between magnetite and ironcontamination coming from the bowls and grinding balls, tends to decrease the coercive force of magnetite. The formation of this phase would be avoided by controlling the grinding time.
Czech name
Příprava nanokrystalického magnetitu vysokoenergetickým mletím železa a hematitu
Czech description
Magnetit byl připraven mletím mikročástic hematitu a železa a pak studován chemickou analýzou, elektronovou mikroskopií, rtg difrakcí a Mossbauerovou spektroskopií. Magnetit se vyznačoval velkou magnetickou tvrdostí a po dlouhém mletí obsahoval příměs wustitu (FeO).

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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