Oxidace částic železa za letu při stříkání pomocí plazmového hořáku stabilizovaného plynem a vodou

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F05%3A00027496" target="_blank" >RIV/61389021:_____/05:00027496 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/05:00080570

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

In-flight oxidation of iron particles sprayed using gas and water stabilized plasma torch

Popis výsledku v původním jazyce

This paper is devoted to thestudy of the oxidation of iron (low carbon) particles during their flight in d.c. plasma jets flowing in air as well as the oxidation after the impact and solidification of particles onto the substrate. Two types of torches have been studied: a conventional one: gas stabilized plasma (GPS) with an effective power Peff = 18 kW and a more exotic one: water stabilized plasma (WSP) with Peff = 139 kW. Besides their power levels, their main difference lies in the plasma gas specific mass downstream of the anode attachment almost 10 times lower in GSP than in WSP with correspondingly the plasma temperature 10000 K higher than for WSP. TheGSP oxidation is promoted by the convective movement induced within the liquid metal dropletsby the plasma flow in the jet core. In-flight oxidation shows strong similarities for both techniques with mainly the formation of non-stoichiometric FexO.

Název v anglickém jazyce

In-flight oxidation of iron particles sprayed using gas and water stabilized plasma torch

Popis výsledku anglicky

This paper is devoted to thestudy of the oxidation of iron (low carbon) particles during their flight in d.c. plasma jets flowing in air as well as the oxidation after the impact and solidification of particles onto the substrate. Two types of torches have been studied: a conventional one: gas stabilized plasma (GPS) with an effective power Peff = 18 kW and a more exotic one: water stabilized plasma (WSP) with Peff = 139 kW. Besides their power levels, their main difference lies in the plasma gas specific mass downstream of the anode attachment almost 10 times lower in GSP than in WSP with correspondingly the plasma temperature 10000 K higher than for WSP. TheGSP oxidation is promoted by the convective movement induced within the liquid metal dropletsby the plasma flow in the jet core. In-flight oxidation shows strong similarities for both techniques with mainly the formation of non-stoichiometric FexO.

Druh

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

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Surface and Coatings Technology

ISSN

0257-8472

e-ISSN

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Svazek periodika

195

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

17-28

Kód UT WoS článku

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EID výsledku v databázi Scopus

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