About: Vaporization of components from alloy powder particles in a plasma flow

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Odpařování částic práškových slitin v plasmovém hořáku (cs) If molten alloy powder particles are plasma sprayed, their composition usually changes. This is due to the phenomena occurring mainly at the in-flight stage of spraying, in particular to selective oxidation and selective transport of elements to the gas phase (vaporization). The present paper deals with selective vaporization of Al and Cr from four binary alloy powders: Fe-Al, Fe-Cr, and Ni-Cr with two Cr concentration levels. The decrease of Al concentration in a Fe-Al alloy amounted to more than 5 %, whereas the Cr concentration fall was not higher than 0.3 % in Fe-Cr and Ni-Cr alloys. The effect of selective oxidation was also quite different: Cr was consumed by selective oxidation at a considerably higher rate than Al. To interpret the experimental results, saturated vapour pressures of the important species were calculated as functions of temperature up to 3200K. For molten alloys, vaporization of elements was taken in consideration, whereas a wider variety of species evaporating from oxide melts If molten alloy powder particles are plasma sprayed, their composition usually changes. This is due to the phenomena occurring mainly at the in-flight stage of spraying, in particular to selective oxidation and selective transport of elements to the gas phase (vaporization). The present paper deals with selective vaporization of Al and Cr from four binary alloy powders: Fe-Al, Fe-Cr, and Ni-Cr with two Cr concentration levels. The decrease of Al concentration in a Fe-Al alloy amounted to more than 5 %, whereas the Cr concentration fall was not higher than 0.3 % in Fe-Cr and Ni-Cr alloys. The effect of selective oxidation was also quite different: Cr was consumed by selective oxidation at a considerably higher rate than Al. To interpret the experimental results, saturated vapour pressures of the important species were calculated as functions of temperature up to 3200K. For molten alloys, vaporization of elements was taken in consideration, whereas a wider variety of species evaporating from oxide melts (en)
Title	Vaporization of components from alloy powder particles in a plasma flow Odpařování částic práškových slitin v plasmovém hořáku (cs) Vaporization of components from alloy powder particles in a plasma flow (en)
skos:prefLabel	Vaporization of components from alloy powder particles in a plasma flow Odpařování částic práškových slitin v plasmovém hořáku (cs) Vaporization of components from alloy powder particles in a plasma flow (en)
skos:notation	RIV/60461373:22310/06:00016911!RIV07-GA0-22310___
http://linked.open.../vavai/riv/strany	1391-1400
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA106/03/0710)
http://linked.open...iv/cisloPeriodika	B
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Leitner, Jindřich
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	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	505718
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/06:00016911
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	plasma spraying; selective vaporization; Fe-Al, Fe-Cr, Ni-Cr powder alloy; oxidation; thermodynamic calculation (en)
http://linked.open.../riv/klicoveSlovo	Fe-Al oxidation thermodynamic calculation plasma spraying Ni-Cr powder alloy selective vaporization Fe-Cr
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[8BB3CC4FAC05]
http://linked.open...i/riv/nazevZdroje	Czechoslovak Journal of Physics
http://linked.open...in/vavai/riv/obor	BJ
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Composition changes of ceramic and metallic materials during their plasma spraying
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	56
http://linked.open...iv/tvurceVysledku	Leitner, Jindřich Voleník, K. Neufuss, K. Kolman, B.
issn	0011-4626
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	22310

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