Odpařování částic práškových slitin v plasmovém hořáku

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F06%3A00016911" target="_blank" >RIV/60461373:22310/06:00016911 - 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 components from alloy powder particles in a plasma flow

Popis výsledku v původním jazyce

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 gasphase (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 experimentalresults, 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

Název v anglickém jazyce

Vaporization of components from alloy powder particles in a plasma flow

Popis výsledku anglicky

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 gasphase (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 experimentalresults, 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

Druh

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

CEP obor

BJ - Termodynamika

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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

B

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

1391-1400

Kód UT WoS článku

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EID výsledku v databázi Scopus

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