About: Atomic Ordering at Grain Boundaries in Fe-Si and Fe-Al Alloys.

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About: Atomic Ordering at Grain Boundaries in Fe-Si and Fe-Al Alloys. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Emission Mössbauer spectroscopy was applied for investigations of the atomic ordering at grain boundaries (GBs) in the polycrystalline samples of the Fe-12, 24 at. Si and Fe-10, 22 at. Al alloys. 57Co atoms were inserted at grain boundaries of the alloy samples by diffusion annealing and source experiments were carried out. The results derived from the emission (grain boundary) spectra and standard transmission (grain interior) spectra using 57Co in Rh source were compared. Differences in the chemical composition and atomic ordering in grain interiors (GIs) and at GBs were found. In the Fe-Si alloys an increase in Si and impurity concentration at GBs is observed and it is more pronounced for the alloy with the higher Si concentration. The diffusing 57Co atoms prefer the lattice sites having iron atoms only as the nearest neighbours in the D03 superstructure. The results obtained on Fe-Al samples indicate more pronounced differences between GBs and GIs. One part of the 57Co atoms occupy positions at GB Emission Mössbauer spectroscopy was applied for investigations of the atomic ordering at grain boundaries (GBs) in the polycrystalline samples of the Fe-12, 24 at. Si and Fe-10, 22 at. Al alloys. 57Co atoms were inserted at grain boundaries of the alloy samples by diffusion annealing and source experiments were carried out. The results derived from the emission (grain boundary) spectra and standard transmission (grain interior) spectra using 57Co in Rh source were compared. Differences in the chemical composition and atomic ordering in grain interiors (GIs) and at GBs were found. In the Fe-Si alloys an increase in Si and impurity concentration at GBs is observed and it is more pronounced for the alloy with the higher Si concentration. The diffusing 57Co atoms prefer the lattice sites having iron atoms only as the nearest neighbours in the D03 superstructure. The results obtained on Fe-Al samples indicate more pronounced differences between GBs and GIs. One part of the 57Co atoms occupy positions at GB (en)
Title	Atomic Ordering at Grain Boundaries in Fe-Si and Fe-Al Alloys. Atomic Ordering at Grain Boundaries in Fe-Si and Fe-Al Alloys. (en)
skos:prefLabel	Atomic Ordering at Grain Boundaries in Fe-Si and Fe-Al Alloys. Atomic Ordering at Grain Boundaries in Fe-Si and Fe-Al Alloys. (en)
skos:notation	RIV/68081723:_____/01:07013274!RIV/2003/AV0/A07003/N
http://linked.open.../vavai/riv/strany	114
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/99/0183), P(KSK1010104), Z(AV0Z1010914), Z(AV0Z2041904)
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Schneeweiss, Oldřich Čermák, Jiří Jirásková, Yvonna
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	674010
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/01:07013274
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	gaim boundaries; Mössbauer spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	Mössbauer spectroscopy gaim boundaries
http://linked.open...ontrolniKodProRIV	[1CDA3869AC62]
http://linked.open...v/mistoKonaniAkce	Oxford [GB]
http://linked.open...i/riv/mistoVydani	Oxford
http://linked.open...i/riv/nazevZdroje	International Conference on the Application Of the Mössbauer Effect ICAME2001.
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Condensed matter physics and materials science Metallic materials with pronounced magnetotransport, magnetocaloric and magnetoelastic effects
http://linked.open...UplatneniVysledku	2001
http://linked.open...iv/tvurceVysledku	Lejček, Pavel Schneeweiss, Oldřich Čermák, Jiří Jirásková, Yvonna
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2001-09-02 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Experimentální a teoretický výzkum kondenzovaných systémů s význačnými fyzikálními vlastnostmi Behavior and properties of metallic and non-metallic materials in relation to their structure, research on processes leading to degradation of material quality
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Institute of Physics

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