Spraying of metallic powders by hybrid gas/water torch and the effects of inert gas shrouding

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F11%3A00370373" target="_blank" >RIV/61389021:_____/11:00370373 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Spraying of metallic powders by hybrid gas/water torch and the effects of inert gas shrouding
Original language description
A hybrid DC arc plasma torch, combining water and gas stabilization, offers a high flexibility in plasma characteristics. These can be controlled in a wide range by the torch operational parameters, such as arc current and secondary gas flow rate. In this study, their influence on plasma spraying of tungsten and copper was investigated. To suppress the in-flight oxidation of the metals, inert gas shrouding was applied. In-flight particle diagnostics, analysis of free-flight particles and coatings was performed for spraying experiments in the open atmosphere and with argon shrouding. Both in-flight particle behavior and coating properties were found to be sensitive to the torch parameters. The application of shrouding was found to affect particle in-flight parameters, reduce the oxide content in the coatings and generally improve their properties, such as thermal conductivity. However, different degree of these effects was observed for copper and tungsten.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
DVS Berichte, vol. 276( Proceedings of the International thermal spray conference 2011)
ISBN
978-3-87155-268-7
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1373-1380
Publisher name
DVS Media GmbH
Place of publication
Düsseldorf
Event location
Hamburg
Event date
Sep 27, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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