About: Nanopowders with superparamagnetic Fe3C particles and their annealing behaviour

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Two samples of nanopowders containing superparamagnetic Fe3C and Fe3O4/gamma-Fe2O3 particles and carbon black were synthesized by the method of laser-induced homogeneous pyrolysis of gaseous precursors. Both were characterized by XRD, HR-TEM, Mössbauer spectrometry and standard magnetic measurements. The mean crystallite size of Fe3C was 3 nm for the first sample and 10 nm for the second sample. Fe3C phase in both samples exhibited reduced Curie temperature and smeared ferromagnetic-paramagnetic transition. After annealing of the samples at 800°C for 30min the Curie temperature of the recrystallized Fe3C phase in both samples was 214°C (standard bulk value). Two samples of nanopowders containing superparamagnetic Fe3C and Fe3O4/gamma-Fe2O3 particles and carbon black were synthesized by the method of laser-induced homogeneous pyrolysis of gaseous precursors. Both were characterized by XRD, HR-TEM, Mössbauer spectrometry and standard magnetic measurements. The mean crystallite size of Fe3C was 3 nm for the first sample and 10 nm for the second sample. Fe3C phase in both samples exhibited reduced Curie temperature and smeared ferromagnetic-paramagnetic transition. After annealing of the samples at 800°C for 30min the Curie temperature of the recrystallized Fe3C phase in both samples was 214°C (standard bulk value). (en)
Title	Nanopowders with superparamagnetic Fe3C particles and their annealing behaviour Nanopowders with superparamagnetic Fe3C particles and their annealing behaviour (en)
skos:prefLabel	Nanopowders with superparamagnetic Fe3C particles and their annealing behaviour Nanopowders with superparamagnetic Fe3C particles and their annealing behaviour (en)
skos:notation	RIV/68081723:_____/10:00354295!RIV11-MSM-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M0512), P(GA202/08/0178), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	6-7
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	David, Bohumil Schneeweiss, Oldřich Pizúrová, Naděžda
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	273634
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/10:00354295
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Fe3C; nanocomposite; magnetic measurements; Mössbauer spectroscopy; superparamagnetism (en)
http://linked.open.../riv/klicoveSlovo	superparamagnetism Mössbauer spectroscopy magnetic measurements nanocomposite Fe3C
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[160499DDF7BE]
http://linked.open...i/riv/nazevZdroje	Surface and Interface Analysis
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Research center of powdered nanomaterials Synthesis of Fe-based magnetic nanoparticles in low-temperature microwave plasma
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	42
http://linked.open...iv/tvurceVysledku	David, Bohumil Schneeweiss, Oldřich Pizúrová, Naděžda Alexandrescu, R. Dumitrache, F. Fleaca, C.
http://linked.open...ain/vavai/riv/wos	000281149700054
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	0142-2421
number of pages	4 (xsd:int)

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