Effect of a Spatially Fluctuating Heating of Particles in a Plasma Spray Process

dc.bibliographicCitation.date2023
dc.bibliographicCitation.firstPage1
dc.bibliographicCitation.issue1
dc.bibliographicCitation.lastPage24
dc.bibliographicCitation.volume43
dc.contributor.authorZhu, T.
dc.contributor.authorBaeva, M.
dc.contributor.authorTestrich, H.
dc.contributor.authorKewitz, T.
dc.contributor.authorFoest, R.
dc.date.accessioned2023-02-01T10:23:26Z
dc.date.available2023-02-01T10:23:26Z
dc.date.issued2022
dc.description.abstractThe work is concerned with the effect of a spatially fluctuating heating of Al2O3 particles with diameters of 5–120 μm during a plasma spray process. A plasma jet is generated in a mixture of Ar (40 NLPM) and H2 (14 NLPM) and in pure Ar at an electric current of 600 A. The tracing of the injected particles in the plume region of the plasma jets is considered in the framework of a three-dimensional model taking into account a turbulent fluid flow. It is shown that the heat source for the injected particles exhibits a well pronounced spatially fluctuating structure due to the enhancement of the thermal conductivity resulting from dissociation and ionization of the molecular gas in the temperature range of 2500–4000 K and 13,000–14,000 K, respectively. During their travel towards the substrate, the particles are therefore repeatedly heated in the gas mixture in contrast to the case of pure argon. Particles injected in the gas mixture reach the substrate with a higher average temperature and velocity.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/11199
dc.identifier.urihttp://dx.doi.org/10.34657/10235
dc.language.isoeng
dc.publisherDordrecht : Springer Science + Business Media B.V.
dc.relation.doihttps://doi.org/10.1007/s11090-022-10290-y
dc.relation.essn1572-8986
dc.relation.ispartofseriesPlasma chemistry and plasma processing 43 (2023), Nr. 1
dc.relation.issn0272-4324
dc.rights.licenseCC BY 4.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.subject3D plasma jeteng
dc.subjectParticle heatingeng
dc.subjectPlasma sprayeng
dc.subjectTurbulent floweng
dc.subject.ddc540
dc.titleEffect of a Spatially Fluctuating Heating of Particles in a Plasma Spray Processeng
dc.typearticle
dc.typeText
dcterms.bibliographicCitation.journalTitlePlasma chemistry and plasma processing
tib.accessRightsopenAccess
wgl.contributorINP
wgl.subjectChemieger
wgl.typeZeitschriftenartikelger
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Effect_of_a_Spatially_Fluctuating_Heating.pdf
Size:
4.08 MB
Format:
Adobe Portable Document Format
Description:
Collections