Preparation of MgO-Ni3Fe nanocrystalline composite from spark eroded powder

0177993 - UFM-A 20033002 RIV CZ eng K - Konferenční příspěvek (tuzemská konf.)
Schneeweiss, Oldřich - Jirásková, Yvonna - Řepa, P.
Preparation of MgO-Ni3Fe nanocrystalline composite from spark eroded powder.
Proceedings of the National Conference NANO'02. Ostrava: Repronis Ostrava, 2002 - (Švejcar, J.; Šandera, P.), s. 322
[NANO'02 National Conference. Brno (CZ), 02.11.2002-21.11.2002]
Grant CEP: GA ČR GA202/01/0668; GA MŠMT OC 523.20
Výzkumný záměr: CEZ:AV0Z2041904
Klíčová slova: nanomaterials * magnetic properties * Mössbauer spectroscopy
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

Nanocomposites MgO-TM (TM = Ni3Fe, FeCo) were prepared by controlled heat treatment of compacted spark synthesised nanopowders. Main attention was paid to study of influence of interaction with surrounding atmosphere and adsorbed gases on phase composition and magnetic properties. Mössbauer spectroscopy, x-ray diffraction and TEM were used for phase analysis. Changes in structure and phase composition during annealing were detected using thermomagnetic curves and DTA/TG measure-ments and completed with gas analysis using mass spectroscopy.
Trvalý link: http://hdl.handle.net/11104/0074891