About: Mössbauer Effect Study Of Iron Thin Films On Si/SiOx Substrate And Iron Phases At Deposited Carbon Nanotubes

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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	Phase composition of 10 nm thick Fe film on the silicon substrate with 200 nm thick SiOx layer after annealing in vacuum and in H2+CH4 was investigated using Conversion Electron Mössbauer spectroscopy (CEMS) . CEMS spectra show that the original iron film was formed by Fe3+ phase. This phase is stable after the annealing in vacuum or in CH4+H2 below 500 °C but formation of phases with Fe2+ and Fe0 (γ-Fe and α-Fe) was observed after annealing at 500 °C and higher temperatures. Formation of fayalite (Fe2SiO4) occurred during vacuum annealing at 700 °C. SEM and CEMS study of the sample with grown multi-walled carbon nanotubes shows that the dominating part of iron atoms is present in Fe3C and Fe5C2 carbide phases. Besides their stoichiometric forms spectrum components which can be ascribed to the amorphous Fe5-xC2+x carbides, γ-Fe, and Fe3+ were observed there. Phase composition of 10 nm thick Fe film on the silicon substrate with 200 nm thick SiOx layer after annealing in vacuum and in H2+CH4 was investigated using Conversion Electron Mössbauer spectroscopy (CEMS) . CEMS spectra show that the original iron film was formed by Fe3+ phase. This phase is stable after the annealing in vacuum or in CH4+H2 below 500 °C but formation of phases with Fe2+ and Fe0 (γ-Fe and α-Fe) was observed after annealing at 500 °C and higher temperatures. Formation of fayalite (Fe2SiO4) occurred during vacuum annealing at 700 °C. SEM and CEMS study of the sample with grown multi-walled carbon nanotubes shows that the dominating part of iron atoms is present in Fe3C and Fe5C2 carbide phases. Besides their stoichiometric forms spectrum components which can be ascribed to the amorphous Fe5-xC2+x carbides, γ-Fe, and Fe3+ were observed there. (en)
Title	Mössbauer Effect Study Of Iron Thin Films On Si/SiOx Substrate And Iron Phases At Deposited Carbon Nanotubes Mössbauer Effect Study Of Iron Thin Films On Si/SiOx Substrate And Iron Phases At Deposited Carbon Nanotubes (en)
skos:prefLabel	Mössbauer Effect Study Of Iron Thin Films On Si/SiOx Substrate And Iron Phases At Deposited Carbon Nanotubes Mössbauer Effect Study Of Iron Thin Films On Si/SiOx Substrate And Iron Phases At Deposited Carbon Nanotubes (en)
skos:notation	RIV/68081723:_____/10:00354513!RIV11-MSM-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M0512), Z(AV0Z10100521), Z(AV0Z20410507)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	David, Bohumil Schneeweiss, Oldřich
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	272670
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/10:00354513
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nanotubes; Mossbauer; iron; carbides (en)
http://linked.open.../riv/klicoveSlovo	nanotubes iron carbides Mossbauer
http://linked.open...ontrolniKodProRIV	[DA99ACA8A1AB]
http://linked.open...v/mistoKonaniAkce	Liptovský Ján
http://linked.open...i/riv/mistoVydani	Melville, New York
http://linked.open...i/riv/nazevZdroje	Mössbauer Spectroscopy in Materials Science - 2010
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Research center of powdered nanomaterials
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	David, Bohumil Schneeweiss, Oldřich Vondráček, Martin Zajíčková, L. Jašek, O. Mašláň, M. Zbořil, R.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2010-01-31 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films Physical properties of advanced materials in relation to their microstructure and processing
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	American Institute of Physics
https://schema.org/isbn	978-0-7354-0806-7

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