Odpařování složek z částic slitinových prášků v proudu plazmatu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F06%3A00040309" target="_blank" >RIV/61389021:_____/06:00040309 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Vaporization of componets from alloy powder particles in a plasma flow

Popis výsledku v původním jazyce

During plasma spraying of alloy powders, their composition usually changes due to selective oxidation and selective vaporization. Selective vaporization of Al and Cr from four binary alloy powders (Fe-Al, Fe-Cr, and two Ni-Cr alloys) was studied. 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 oxidation at a considerably higher rate than Al. The interpretation of experimental results was based on equilibrium calculations of saturated vapour pressures of all important species at the temperatures up to 3200 K. The results of thermodynamic calculations confirm the Cr concentration decrease in Fe-Cr and Ni-Cr alloys. For Al, the agreement is not so good, which is due most likely to a different coverage of molten Fe-Al alloy drops by the Al-oxide melt.

Název v anglickém jazyce

Vaporization of componets from alloy powder particles in a plasma flow

Popis výsledku anglicky

During plasma spraying of alloy powders, their composition usually changes due to selective oxidation and selective vaporization. Selective vaporization of Al and Cr from four binary alloy powders (Fe-Al, Fe-Cr, and two Ni-Cr alloys) was studied. 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 oxidation at a considerably higher rate than Al. The interpretation of experimental results was based on equilibrium calculations of saturated vapour pressures of all important species at the temperatures up to 3200 K. The results of thermodynamic calculations confirm the Cr concentration decrease in Fe-Cr and Ni-Cr alloys. For Al, the agreement is not so good, which is due most likely to a different coverage of molten Fe-Al alloy drops by the Al-oxide melt.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F03%2F0710" target="_blank" >GA106/03/0710: Změny složení keramických a kovových materiálů při jejich plazmovém stříkání</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Czechoslovak Journal of Physics

ISSN

0011-4626

e-ISSN

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Svazek periodika

56

Číslo periodika v rámci svazku

suppl.B

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

"B1391"-"B1400"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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