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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10290408%21RIV15-MSM-11320___
rdf:type
n10:Vysledek skos:Concept
rdfs:seeAlso
http://www.scientific.net/JNanoR.29.23
dcterms:description
Nanocrystalline powders of iron aluminum alloy of the Fe82Al18 nominal composition were prepared under air, hydrogen and nitrogen atmospheres from the Fe and Al elemental powders by mechanical alloying and also from the conventionally cast Fe82Al18 alloy by the high-energy ball milling. The intensive plastic deformation during high-energy mechanical treatment has introduced high concentrations of open volume defects and contributed to a rapid decrease in the crystallite size down to a nanoscopic range. The hydrogen atmosphere was found to be the most efficient for the Fe-Al mechanical alloying since it has resulted into the fully alloyed Fe82Al18 after 30 h of milling. On the other hand, the nitrogen and air atmosphere have slightly prevented mechanical alloying and after the same milling time the pure iron particles were still detected in the powder mixtures. This partial suppression of the mechanical alloying process is explained by a formation of thin iron nitride and/or oxide layers on the surface of Fe particles preventing mutual inter-diffusion of Fe and Al atom Nanocrystalline powders of iron aluminum alloy of the Fe82Al18 nominal composition were prepared under air, hydrogen and nitrogen atmospheres from the Fe and Al elemental powders by mechanical alloying and also from the conventionally cast Fe82Al18 alloy by the high-energy ball milling. The intensive plastic deformation during high-energy mechanical treatment has introduced high concentrations of open volume defects and contributed to a rapid decrease in the crystallite size down to a nanoscopic range. The hydrogen atmosphere was found to be the most efficient for the Fe-Al mechanical alloying since it has resulted into the fully alloyed Fe82Al18 after 30 h of milling. On the other hand, the nitrogen and air atmosphere have slightly prevented mechanical alloying and after the same milling time the pure iron particles were still detected in the powder mixtures. This partial suppression of the mechanical alloying process is explained by a formation of thin iron nitride and/or oxide layers on the surface of Fe particles preventing mutual inter-diffusion of Fe and Al atom
dcterms:title
Effect of hydrogen on formation of Fe-Al nanoparticles by mechanical milling Effect of hydrogen on formation of Fe-Al nanoparticles by mechanical milling
skos:prefLabel
Effect of hydrogen on formation of Fe-Al nanoparticles by mechanical milling Effect of hydrogen on formation of Fe-Al nanoparticles by mechanical milling
skos:notation
RIV/00216208:11320/14:10290408!RIV15-MSM-11320___
n3:aktivita
n17:S n17:P n17:I
n3:aktivity
I, P(7AMB12SK009), P(7AMB14SK185), P(GAP108/11/1350), S
n3:cisloPeriodika
1
n3:dodaniDat
n4:2015
n3:domaciTvurceVysledku
n14:9949097 n14:7072589 n14:9843558 n14:7037945
n3:druhVysledku
n19:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
13339
n3:idVysledku
RIV/00216208:11320/14:10290408
n3:jazykVysledku
n11:eng
n3:klicovaSlova
mechanical milling; nanoparticles; Fe-Al; hydrogen
n3:klicoveSlovo
n7:mechanical%20milling n7:Fe-Al n7:hydrogen n7:nanoparticles
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[96FC7B82B563]
n3:nazevZdroje
Journal of Nano Research
n3:obor
n8:BM
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
7
n3:projekt
n13:7AMB12SK009 n13:GAP108%2F11%2F1350 n13:7AMB14SK185
n3:rokUplatneniVysledku
n4:2014
n3:svazekPeriodika
29
n3:tvurceVysledku
Čížek, Jakub Janičkovič, Dušan Vlček, Marián Procházka, Ivan Lukáč, František Švec, Peter Jirásková, Yvonna
s:issn
1662-5250
s:numberOfPages
6
n16:doi
10.4028/www.scientific.net/JNanoR.29.23
n18:organizacniJednotka
11320